im not 100% if creat mod is the culprit. I posted a bug note to the mod devs in their github a few months ago and through the updates this bug was not fixed.
When using the pully system in that mod the server freezes, as in it is as if all inputs don't register; i can move around and interact with some blocks but buttons stay pushed, items don't drop when broken, and after a while it all crashes down and kicks me out of the server with no crash report or errors. I've yet to check the logs while this happens but at some point I will get to that when I have more free time
