Description:

When a farm setup has a sword placed within, and a hopper filled with swords tries to transfer items into the farm, a repetitive warning message is triggered. The warning message shown is Unsupported mob catching Item iron_sword minecraft:iron_sword: {Damage:0}. This seems to occur due to the hopper attempting to insert a sword into a slot already occupied by a sword, thus failing the transfer and triggering the warning message.

This makes the automated farm refills dangerous to use. I had about 40 messages per second from a single farm.
Due to having about 10 farms while testing automated sword refill system, the server got hung on [Server thread/INFO] [Framework/]: Unloading server configs... after the stop command.

Steps to Reproduce:

1. Establish a farm with a sword in its slot.
2. Position a hopper adjacent to the farm ensuring it's connected to transfer items into the farm.
3. Fill the hopper with swords and observe the console for the warning message.

Mod Version: 6.8.0

Tested it with 6.9.0. Everything's the same.

Thanks for the report. My fault, seems that I forgot to remove this testing message for troubleshooting some 3rd party mod related issues.