Easiest way to find out - hover over the combat log for your damage, it will show the exact calculation used. Reverse engineer it from there. If you can't figure it out, provide more details. If combat says (1d4) + Dex Mod (3) = 2+3 = 1 then yes, thats a bug. Its impossible to tell, otherwise, what the issue could be without additional information.

What is the problem you are solving? Does your proposed change solve the problem? Is your change feasible? What else will be affected by your change? Will your change impact revenue? Does your change align with the goals and strategies of the organizations (Larian, WotC)?