Modpack as per described https://www.curseforge.com/minecraft/modpacks/hexworks/relations/dependencies, a google doc with a list of all mods and version numbers is located in the patchnotes for each update.

Upon building a machine, one of my players is no longer able to return to the server, as loading the machine kicks him.

I have attached the serverside files relevant to the issue. Please note that the mca file is still an mca file, I just renamed it so github would stop throwing a temper tantrum.
crash-2021-11-21_22.21.25-client.txt
r.-35.10.mca.txt

Hi, the aforementioned player here. The contraption in question is located in chunk -1113, 342, just to speed things up. The majority of it is a very long mechanical piston. Before activating the contraption, about half of the piston extension poles, the piston head, and the five drills attached to it were invisible. They had turned invisible the last time the contraption was deactivated. immediately upon activation, the game crashed, with the crashlog posted up top.

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.