Colored item sometimes parsed incorrectly (possibly UTF-8 issue)
How to reproduce the error
Put any colored item, exit from the server and join back the server.
Example input:
Item slot 1: ABC (purple)
Example output:
Item slot 1: §5ABC
What causes this?
Probably multiverse-inventory.
What is the current possible method to fix this?
There isn't. Disabling colored item completely is not the wise way to do this.