Support for MythicMobs was added.
This has caused there to be some changes in how config files must be setup.
Firstly, when you specify "type" in menu.yml, the mob name must match including case, for example wither skeleton would be WITHER_SKELETON.
Same goes for file names.
Items in the rewards section now MUST use a format like this
Code (YAML):
items:
1:
material
: DIAMOND
amount
: 4
# etc
2:
material
: DIAMOND
amount
: 4
# etc
Instead of
Code (YAML):
items:
diamond
: 1