Ability Score Modifiers Added to Spell Damage Rolls

Franz either adds my INT modifier to my Wizard’s spell damage rolls (incorrect unless a specific class build or feat is being used) or my Strength modifier (which is just weird lol). As a workaround I am using a dice roller and rolling damage manually but this needs serious attention. Also, when I try to correct him, he puts up another spell damage roll button (without the correction) but in doing so he uses an additional spell slot. When I mentioned that he shouldn’t use another spell slot, he apologizes and uses another one. Easy enough to add them back manually but definitely a serious bug.