Odd steam workshop manifest error

Hey there, I'm reaching out to the technical team as I've tried everything online to try and resolve this persistent issue with my Space engineers steam workshop. I have a reoccurring manifest error when steam validates my SE workshop files, meaning that it is stuck in an endless loop. I have tried unsubscrbing from everything, clearing the download cache, doing a clean install of SE and steam including removing appdata se folders, reinstalling the game and steam, logging in and out of steam, changing the steam server region. Nothing has made a difference at all.

This error began when I subscribed to a steam workshop collection, I loaded a world from that collection and there was a mod missing so I think SE tried to subscribe and download it, but it isn't available anymore, leaving an infinite loop of checking if the mod has been downloaded or not via validating all SE workshop files, finding thst it hasn't been downloaded, then trying to download it again. Thst then fails, gives a manifest error as the reason, the  reschedules the download for a few hours later.

It downloads SE mods with no issues, I play with mods sometimes, everytime I open the ingame blueprint menu to paste something, it restarts the validation process, same when I click play in steam.

I can provide any details for you to help diagnose this issue, just let me know what you need and I'll send it. Many thanks for taking the time to help me with this phantom issue :)