Agreed I really have no idea what's going on.
For what it's worth, when I tried the "fresh" re-install, even having deleted the previous preset GC tried to apply the previous settings and to some degree, it worked. Is there a way to fully erase all memory of GC and re-install? Maybe this will fix whatever is going on with my machine.
In any case, can you elaborate a bit on which screenshots you're looking for? Happy to provide whatever you need.
EDIT - downgraded back to 3.186 and now the CTRL modifier menu is working just fine again.... V strange.