Hey,

I tried to make an automatic mining "moving structure" with the cart assembler, but when I put a deployer on the structure and turn the cart assembler on, my server crash.

I tried to do the same moving structure in singleplayer and it was working perfectly. I don't understand why it is doing this even though I installed the same version of forge on the server and the client side.

I also tried this structure without the deployers and it didn't crash.

Here is my server's crash report and a picture of the structure :

crash-2021-01-21_20.13.58-server.txt

I'm getting the same crash with deployers trying to place rails on a LAN world.

I tried with smaller structures, but it keeps crashing. It doesn't need to try to place a block. The simple fact that there is a deployer crashes the server.