So i made an platform out of liniair chassis with chests on it, made to be pushed up and down into the floor by a piston,

(In single player it works without problems)
But in a multiplayer server (create as its only mod), the chests all return to single chests, and every chest is emty.

(Yes everything i had in storage is gone lol,)
So realy anoying, becouse i tested in singleplayer first if it worked.

Furneses on it were emty too, and i tested it wirh an barrel, its content was also deleted.

Have not tested it with shulkers, becouse i have to start over again now, becouse all my recourses are gone, but i will try that before taking the 2 pistons down (1 for push the platform up and retract, and 1 above it to push it down and retract, when retracting, the piston fails to take the platform)

This issue has been marked as stale because it has been inactive for 3 weeks. It will be closed if it remains inactive for another 3 weeks.

This issue has been closed since it has been inactive for 3 weeks since it was marked as stale.

Its not my server, but it is running the towny and dynamap plugin, i looked at some others, and it looks like the same problem

Are you running a Mohist server? MohistMC/Mohist#1180