I think I found out what the issue is. Whenever I set the spell to ATTACK, it adds a line to the "Attacks & Spellcasting" column of the Core page. But since I don't want that section to be huge, I delete the ones that I don't use as often. When I delete them from there, they revert to SPELLCARD in the spells page. Now this is really frustrating, cause it means my Core page will have to be huge and cluttered with spells I don't use often, or I'll have to manually reset the Output every time. Can you people from roll20 look into this, please?