I am using VarAC v7.3.0 on Win11. Up until this morning, I'd been playing around with my KX2 with VarAC. This morning, when trying to reconnect my Flex-6400, I noticed that "FlexRadio" is gone from the pulldown for both PTT Configuration and Frequency Control.I do try and remember to backup the previous version I was running. In my case, that was v7.0.8. When I copied the .exe file back to my VarAC directory, FlexRadio has returned to the dropdown.