Kefrem said: autofill and autocomplete been off for ages...turned on acceleration and no change :( Probably good to check anyway, They can be toggled back on after an update. Just had to have one of my players do this. But it looks like actually you are having an issue regarding Charactermancer? Usually (at least for D&D) "Monster" means non-player character. Characetrmancer getting hung up is a different issue than being unable to edit an NPC, and often requires dev intervention to fix. I would suggest capturing a Console Log ( Chrome , Firefox ) from the time when you are attempting to save the changes, and using that to file a Help Center Request .