Hello, I would love to know a way to disable the feature of turning grass and dirt into wither block since it causes crashing issue in server due to flower turning into a flower that is buggy and causes crash. Thanks.

In the config, there is a line called disable_use_chaos_robes which is set to false by default, setting it to true should disable all the uses for the item (including healing when having decay).

There isn't anything right now to disable the Monarch of Chaos block change, I will implement this for the next update.