if a crafter is placed using a schematicanon while the crafter in the schematic had an item in it then it will make your world unuseable.
I am not 100% certain if this is the crafter itself, the funnel putting an item in the crafter or the belt.

The only way to fix this is by removing the crafter using the amulet map editor.

server logs are attatched
server_logs.txt

It seems that replacing the belt and crafter and replacing them will still cause a crash.

the crafter will also not be able to be linked to other crafters while in this bugged state.
The crafter will however be powerd.

crafters replaced in the same location will still not work. placing them 1 block in front however, does.

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.