If I could reiterate on this thread, I'm also experiencing this in my game. I'm using the jumpgate with D&D 5E 2024 By Roll20 character sheet. I've narrowed down that if the character sheet uses the option to automatically roll damage, the damage is not adding in ability modifiers but does add in other mods (like rage damage bonus for example). I confirmed that on the sheet the damage shows correctly, like 2d6+4, but it only rolls the 2d6 when auto-rolled. However, if the player clicks just the damage portion to roll damage alone, it does add in the ability damage. We all like to use auto-rolling, so this is unfortunate.