The character sheet of the most important NPC (potential BBEG) in my campaign has broken. I first discovered this when I tested an attack roll and discovered that the "roll to GM" function didn't work for that character, meaning I had to delete the entire chat history. When I tried again I found that not only would it ignore roll to GM, but that modifiers would not add to ability checks and saving throws, and that bless was permanently on, despite being checked off. I managed to bypass the issue by exporting the character and reimporting it to the same game, and the new sheet seems to work fine. But I would kind of like to know what the hell happened here and why a sheet would break so severely for no reason. EDIT: For clarity, the sheet was in the D&D 5e style. It was created many months ago and had worked fine until today.