Small Grid Blast Door Blocks - Inconsistent Sizing
At some point during the past 2 years, the models of small grid blast door blocks appear to have been changed resulting in some unexpected collision issues. In particular, the edge and corner edge blocks appear to be too thick, making them collide where the regular blast door blocks do not. Please note that the equivalent large grid blocks do not appear to exhibit these issues. For specific examples, please see 0:00 to 0:10 in the above video.
This is a quite the bummer, partially because the edge blocks look great and have some very useful properties that differ from the other blast door blocks as expected. Their edge can slide against other blocks without collision, as shown 0:11 to 0:15 in the above video.
To build a working door requires that the door be both thin enough to fit between the containing walls, and smooth enough to slide against its frame without issue. At this point, only the regular blast door blocks are thin enough to fit between walls, and only the edge blocks are smooth enough to slide against the frame. As can be seen at 0:23 - 0:25, such a door gets stuck because of the thickness of the edge blocks.
Thank you for taking the time to review this issue, and please feel free to reach out if any additional clarification would be helpful!