Hello, I can't seem to find anyone else having this issue so I'm not sure what's wrong. Whenever I have made a homebrew monster for the past month the settings are messing with me. when I save the monster it keeps showing all the "tabs" even if I havent written anything in them or toggled them (mythic/legendary). Its really annoying. Past monster I have done are fine, but the moment I update them.. boom this happens to them as well. Surely this is not meant to be? 

It’s a bug, you have to activate the fields, delete the empty space in the fields, and then deactivate them again.

So I'm not going crazy, good. And I have tried that when I noticed there were random spaces in the text boxes still appears like this.

There must be some errant code in there. Find the little grey button above each field with the following symbol:

</>

That will let you view the source code for the field, delete everything.

Quote from IamSposta >>

There must be some errant code in there. Find the little grey button above each field with the following symbol:

</>

That will let you view the source code for the field, delete everything.

 That seemed to have helped yeah. Cheers. I hope they fix this issue so I dont have to do this everytime.