Pressurization not working properly

Hans Peter shared this bug 16 months ago
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local game, online friends only.


the airvent signal gets yellow, it looks like airtight rooms are not airtight anymore from time to time. restart fix this. i dont know how to trigger it, maybe if a player leaves the area.

is there a way to turn off tempeature feature?

Comments (30)

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Same here but on a hosted server (my own).

I realized that this only happens when i dock a large grid ship onto another large grid ship (with landing gears so far, haven´t tested the alternatives).

After doing so, both ships get depressurized and cannot be repressurized until i restart my server.

Docking small grid ships on a large grid ship is fine, no issues here. Docking large grids with stations - haven´t tested it yet.

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we have a large grid station fixed on an asteroid and only small ships without landing gears, just connector

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Yes today i realized this also happens when NO ship is docked. There were two players on the large ship walking around and out of nowhere the whole vessel got depressurized.

I don´t know how to reproduce this issue yet, hoping this gets more support soon.

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Read full comment

did not mean to post it here.

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This pretty much breaks the game for me for this issue occurs quite frequently on my server.

Have to restart it every time - not a suitable solution on a MP Server...

I still don´t know what may be the cause, landed ships of every size and sometimes it happens, sometimes it doesn´t.

Anyone yet know how to reproduce it ?

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Yep same here.

We built a large grid ship and when another player enters it or lands a ship we don´t have any pressure on the whole ship.

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Same here on a multiplayer server.

Everything works fine unless at last one person is close to the pressurized grid.

After all users leaving the grid and re-enter the grid again the lights on the air vent shines yellow.

After a while, the room is pressurized again. I don´t know what it triggers.

Maybe an initialisation problem.

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I mean: "Everything works fine as long as there is at least one person near the pressurized grid."

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Hello, Engineer!


Thank you for your feedback! Your topic has been added between considered issues.

Please keep voting for the issue as it will help us to identify the most serious bugs.


We really appreciate your patience.


Kind Regards

Keen Software House: QA Department

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Since another month is gone now and no solutions to be found:

When can we expect more to this issue ? Any information if this will get fixed during the next year ?

Sorry to ask again but this issue just makes it impossible to play on ANY Server for me and some friends.

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Had to edit my comment because of some issue with Chrome Browser (works with IE).

I started experiencing problems with pressurization today. Rooms depressurized and at first the vents showed "Not Pressurized". I quit out of game and loaded it again. Vents start to pressurize, but they do not keep at 100%. I did an experiment where I blocked myself in a 1x1x1 room with vent; I could pressurize to 100%, but if I turn off vent, pressure drops. The larger the room, the faster the pressure drops. All blocks in ship have 100% integrity.

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After several switching the airlock of the base with pressurization bug,sometimes it fixed but airvent uses tons of oxygen for pressurizing the area.

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Noticed this bug on my station's hangar, pressurizes fine sometimes but can get stuck yellow. Occasionally removing a block then putting it back un-sticks it and it can be pressurized again though sometimes that fix makes it take a lot of air (and time) to pressurize and depressurize. Restarting the server fixes it and everything works like it should.

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Moved world to SP from MP server, issue went away and never came back.

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Just came across the same issue. Also can reproduce this relyable in my current save.


Restarting the game fixes this ... for simply a single other interaction

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Hi guys, thank you very much for your feedback.

X39: Please, can you provide the save with info how to reproduce the issue? It would be very helpful for investigating the issue.

Thanks again and have a nice day :)

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I have this issue and tried multiple ways to work my way around it. What (kind of) seems to work is to use a separate system for O2 production and air vents that is completely disconnected from the normal conveyor system used for items/ores/materials etc.

O2 pressure will still be lost randomly when exiting/entering buildings and rooms or when removing/placing blocks but with a separate system the air will be replenished immediately whereas with a combined system I would get one green light on the air vents but they would not replenish the air lost.

Another thing that happens when the air vents get stuck is that my O2/H2 generators will start running at full power but will not produce anything, even if I'm sitting in a cockpit. Restarting the generators will sometimes fix this but not always. Recycling base power does not seem to have any effect.

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Could have sworn i pressed post ...

https://steamcommunity.com/sharedfiles/filedetails/?id=1959030791

Steps to Reproduce:

  1. Walk through the closed Door to your right, wait until other door opens
  2. Walk through now open door into the "hangar area" until the door closes behind you
  3. Repeat the steps 1 - 2 into the opposite direction
  4. Move to the buttons panel and press "1" to open the hangar doors
  5. Repeat Step 1 - 3, notice that no air vent in the current grid is working anymore (Yellow light)


Note that this world uses a very basic script for the detection of direction (to properly pressurize or unpressurize).


Kindly Regards, X39

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Hello - again nothing new here ? This pressurization bug is the reason i quit the game for MONTHS now - still no fix ?

What information do you need ? How can we help ??

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I see this issue quite often, especially in servers. Some air vents suddenly show not pressurized even though the room is sealed. Sometimes opening and closing the doors fixes the issue, but not all the time.


I've also seen this in my single player game when working on airlock script. In it I added a "decontamination" option which basically opens all the doors for 60 seconds to vent all the air to space. This feature seems to often break several vents randomly with this "not pressurized" issue, especially when doing this "decontamination" several times in the row. Restarting the game fixes the issue.

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So just now occured again this morning at 08:38:

Having a small area fully pressurized, opened a door to space - boom pressurization level down to zero. Now closed the door again and the vents still show "Yellow" - air not coming back.

The room still is completely sealed.


The thing is, now if i open a door to an attached room (also fully pressurized), the air of this area also gets sucked out to the first area, making this new area also "yellow" on all vents. Same with the next attached one and so forth.

Just like the disease spreads from one room to the next :)

Oh and just to be sure: This happens in a vanilla world as well as in a modded world.


Got the log file and the world itself to dropbox: https://www.dropbox.com/sh/y23faxbk5lr9ozi/AAAREQMQlzpY9mcdcfEEyctZa?dl=0" rel="nofollow" target="_blank">https://www.dropbox.com/sh/y23faxbk5lr9ozi/AAAREQMQlzpY9mcdcfEEyctZa?dl=0">https://www.dropbox.com/sh/y23faxbk5lr9ozi/AAAREQMQlzpY9mcdcfEEyctZa?dl=0


If you need anything else feel free to contact me.

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I ran into this same problem on a dedicated server. My ship was originally built airtight and pressurized fine. It had 2 separate compartments with their own air vents. The upper compartment was fine for several days -- it even re-pressurized correctly after I derped and opened both airlock doors at once.

Eventually i went into the lower compartment to check something, and when I opened the door, the entire ship de-pressurized. After closing the door between upper and lower compartments, i was able to re-pressurize the lower compartment, but the upper compartment remained bugged for many days afterwards. I logged in and out many times and the server was res restarted on a regular schedule every 6 hours. Yet the problem persisted until I stopped playing on the server.

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Frustration would be less a thing if someone actually would respond to this issue. I don´t think only so few ppl have problems here - get ppl to vote here !

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Happening again and again, Keen what more information do you need ? Please advise

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I had to restart a map on my dedicated server because this was happening, out of nowhere(from my perspective) rooms that were previously pressurized suddenly weren't anymore. Same issue as reported, on a restart they were ok, but when I would use a door or let it otherwise become unpressurized, it wouldn't recognize the room as a whole. Even newly constructed rooms that were just a closed block out of armor(Full square) and all the necessary stuff inside of it didn't want to pressurize anymore.

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We have been having the same issue on our private MP server. Server restart fixes the issue as does copying the grid and pasting it back into the world, or pasting it into a creative single player game... very annoying.

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Hello there.

The same bug occurred multiple times while I was playing on a multiplayer server.

We encountered this problem as we tried to pressurize a base on an asteroid. Of course, we triple-checked the air tightness of the whole building before considering this anomaly as a bug. But the fact is that restarting our server solved the problem... at least temporarily. Since then, our base regularly lose its air tightness - often when we interact with doors (which are obviously between fully pressurized rooms).

It is quite a game-breaking bug, since we must frequently restart the server in order to properly play on it. Unfortunately, it is difficult to provide information that weren't already mentioned above.

Please consider to investigate further this bug (if that's not the case yet). Your game is really fantastic, but would be even better without this kind of problem. Keep it up !

Best regards,

A fellow Engineer


EDIT : I forgot to mention the fact that sometimes a room or another stay pressurized when the others are stuck in a bug state, even if its doors are open.

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Hello again,


I'm actually on the same multiplayer server than Draco Nocte (the one who posted above me) so my post will not give you any further explication of the observation we could have about this bug. Apart for the fact giving more visibility to this post.


I just came to convey to you all my gratefulness about this game, I discovered it by a friend's recommandation weeks ago and i'm getting closer to the 200hours now, just fell in love with this game.

One more time, i invite you to investigate on the bug, if it's not already in process of course, and I hope that this is gonna be fix soon we will be able to fully enjoy the game again.


Warmly,


A noob engineer who prayed Klang this morning.

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I am beating a dead horse on this topic but I too have a pressure problem. Built a space base. Found and closed all air leaks. Built air vents for two sections (inner hub and outer ring). Pressurized both areas and maintained pressure for the last week. I installed sensors on all sliding doors to automatically open and close. Pressure still working. Today, pressure failed. I have added no interior pressurized space. I have 8 oxygen tanks at 100%. I have 8 oxygen farms and 5 O2/H2 generators with plenty of ice to spare. Can't figure out why they stopped working in two separate pressurized zones. I have now closed the game and restarted it while I am typing this. After the restart neither area will pressurize with all 15 air vents showing one yellow light so the problem persists. Another related issue that I have noticed is that the Medical Room and Survival kits will not supply oxygen either. They are not co-located and reside in each section. I can go to a docked ship and get oxygen replenished from the onboard survival kit.

It appears that O2 is not passing through the conveyors. I did get O2 from a Cyro chamber when I entered it.

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Same issue here, my brother and I have spent the past few *weeks* trying to figure out the cause of this bug even going so far to play without any mods (which we hate to do) and frankly we are reaching our breaking point in patience as it seems nothing has been done to *fix* this bug.

There is a thread about it on reddit and also one on steam about the problem; I really do wish a solution could be found since it makes the game unplayable after awhile (and having to constantly restart the server is not a solution)

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The issue is very aggravating to say the least. Whatever the problem was has cleared for me and the base is now pressurized with no action taken by me. it was 4-5 days of no pressure and then it started working. I have no idea.....

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It seems to be somewhat related to the grid size from what I can tell. On a moon base, it started doing this where rooms would not pressurize. Meanwhile a hallway that is not sealed up is trying to pressurize and venting all my O2. After turning off the leaking vent, I started to build a wall around a vent and it suddenly pressurized again. I open the door to space and the room doesn't depressurize until I CLOSE the door.

At the minimum, is there any debug tools that we can use or logs that give us some idea why this is happening? It completely ruins the game especially when I instantly die because the room pressure has gone into the NEGATIVES and my suit's power drains instantly trying to keep me warm.

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Yep. All this. I've got a station, multiple floors connected by an elevator. Leak detector shows no leaks. 100% oxy tanks x4, vents right on top of those 4 tanks. That room won't pressurise, neither will the crew quarters (individual or common) on the floor above. Yesterday, pressurised. Tonight, not pressurised. Very aggravating/confusing. Last time, a sacrifice to Clang fixed the problem... that trick not working tonight.

I've also had it seem like the o2 gen isn't working, walked away and come back to find it 'suddenly' working again, untouched.

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Im going to leave a comment here as well. This is still very much and issue. And makes playing survival MP an absolute pain.


Private host with brothers. our ship is perfectly air tight with self closing airlocks. hours will go by and randomly, entire floors will become depressurized with no oxygen.


the ONLY will to fix it is to reload the world, and the ship instantly gets all its air back.


Ill share a world if need be, but im not sure how that helps or matters since this seems to be such a common issue.

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I have this problem too, at the beginning I destroyed the rooms inventing many theories to try to work.

Basically, when it occurs, it appears to be general or in an intermediary region.

I used a plugin that displays where the leaks are and shows nothing.

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I'm also having a similar issue. Built a large launch silo underground. Just been layering rooms around the central chamber. Drilled out an entire floor and sealed it up airtight then pressurised it. Just separated that floor into 4 rooms using doors and built a med bay. Added all the cosmetics and everything. Built a medical room for healing/respawning, then depressurised the room so I could put a hole in the ceiling without wasting the oxygen, and connect the medical room to conveyor system for H2/O2 replenishment. Repressurized the room and the vent just kept pumping without increasing the pressurization %. Turned the vent off then back on and now the entire floor, including all the other isolated rooms are claiming they aren't pressurized even though I didn't make any changes to their armor blocks. Tried reloading and reconnecting the system but I just can't seem to fix the bug.

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Still an issue.

Got a large hangar with 9 air vents connected to oxygen tanks and the rest of the conveyor system.

Got timer blocks setup so the room gets depressurized first and then opens the hangar door. Works fine.

But when I do the reverse, sometimes the air vents will put pressure in the hangar and it takes about 15 seconds to fill. Sometimes it takes ages to fill (1 minute and just 0,3 pressure on the room). And sometimes the air vents say there is a leak and do nothing.

It's basicly ransom, everything is sealed because sometimes it does work.

I'm on a self hosted dedicated server with 2 persons. Using quite a lot of mods, but guessing the same issue is without mods?

Restarting the server works.