After latest patch in 1,5 I cannot get radio from intercom, the switch is working, but it still stuck on intercom. Anyone else?

Seems it work online, I have a problem in one of my campaigns then

Patches always download their "default" keyboard (and mission) files.

Eg.Mig-21 Quick, Single and Training missions has "Radio" broken at more than year.
Remember at time issues with Ka-50 too.

Can be the case of your mission.

A trick that sometimes work, open mission in Misson Editor, add a vehicle somewhere and delete the, click in save the mission. Test.