EDIT: Possibly not an issue as it was pointed out to me the trigger vs weapons release in this post. If not a bug please delete this post and sorry for wasting your time lol.
When in AA mode on the stores page you can't box the override mode for the AGM-88. For example when I'm in a mission with a cap loadout of 6 AIM-120's and 2 AGM-88's, if I get locked by an SA-5 from 70+ NM while also having an enemy jet close that I need to shoot an AIM-120 at I'm forced to shoot off the AGM-88's outside its respective range before I can engage the air target because I can't box the HARM override. This has been an issue for some time and looking today I couldn't find a report on this issue. I can only assume this is a bug as it works fine in AG mode (shown in track) where I can override the HARM to release other weapons but I can't in AA mode.
The track file attached was done in the AGM-88 weapons practice mission in single player on the Caucasus map specifically to keep the track short. However I have tested this on Syria and Persian Gulf both in single and multiplayer. Also I performed a repair just before to make sure that there were no issues with my install.
Specs - Mobo Z690 Gaming X - DDR4 32 GBytes - Intel I5 13600K - RTX 2070 Super - Samsung 2TB M.2
AA-HARM-NoOverride.trk