supposedly the programmer layouts have ctrl and alt like old messagease had but i can't find them? all i can find is dessalines saying it should be in the thumbkey developer layouts in here: https://github.com/dessalines/thumb-key/issues/656
There are some recent unreleased code fixes related to this but I have no idea what your problem is so I can't solve it. You'll need to open up an issue in the github.