There are all sorts of problems, even such basic ones as a combo box named 'comboName_A1' but code that refers to 'comboName_A'.
Instead of relying on ActiveX controls, I suggest you take a look at using Content Controls. See, for example:
https://www.msofficeforums.com/word-...html#post46903
and, for different elements from a selected dropdown item to be output to different content controls, see:
https://www.msofficeforums.com/word-...tml#post120392