Hello so this is my first time asking a question but I can’t seem to find anyway to fix it or anywhere for help but I have a issue where there is a invisible collision on doors where I can’t go through them but if my arms hits it open but I can’t go through (this is for certain addon buildings I add also they work on some servers just not mine) and sometimes even collisions of old objects that aren’t there how do I fix it?

You need to contact the maker of the interior(s) and make sure the correct collision (.ybn) files are being streamed and/or there aren’t conflicts between collision files from different interiors.