Im getting a strange UI bug when I activate Reaction Forces in my launcher and connect onto any Life, Wasteland or KotH Server which run on Vanilla Arma.

If I connect onto a Reaction Forces server the UI is being disabled. (Unluckly there are no Official servers with Vanilla which allow RF key)

Already:

• checked the arma files on errors per steam
• asked friends, they also have this issue
• changed profile