Lost COMS in aircraft upgrade on mission.

[AvgWhiteGuy]

Anybody got a clue as to why I have lost my COMS when I changed aircraft in an existing mission. Seems strange and nothing is consistent in this case.

I swapped out an A-10C for an A-10 Tankkiller in a favorite old mission; Operation_Bactria (Habu23, 2012).

Now I lose all COMS via spoken words (VA) to ATC, JTAC, but the radio menu excepts my commands BUT doesn't has no audio response. ATC does accept my request for Startup, Taxi, Takeoff and changes status thru the process but gives no audio or subtitle response. Same with JTAC.

Ground Crew DOES respond verbally and in subtitle to request for Ground Power but NOT Rearm-Refuel....

To make this even weirder, I swapped out the A-10C for an F/A-18 and that does works mostly.

 

Any clues here...driving me crazy...appreciate any response