Game crashes when axolotl is put in bucket when using addon that adds more axolotol types during an autosave

Steps to Reproduce

1. Turn on auto save indicator in settings
2. Wait for an autosave
3. Put an Axolotl In a bucket

Observed Results:
The game will freeze, for around 3-20 seconds, and then crash

Expected Results:
The axolotl is put in the bucket