Not sure this is a bug or just a change in the way it functions. If nothing is preselected, it functions as in V5, if something is selected no dialogue box appears, and so no options can be changed.
That’ss how V6 for Windows acts so it appears to be intentional.
Is there ever a time you want to change the command options?
I think this behavior is intended as a click and time saving choice.
This is changed in V7/WIP, you need to Enter to accept the current settings.