Spawned into a matchmade mayhem 3 proving ground. Couldn’t move or switch weapons or do anything. Fast traveled to pod, problem persisted.
Have you tried 1) verify game files 2) restarting pc, game etc 3) joining another game session?
The button to turn the game off worked at least. Gonna go play a better game.
Glad I could help. Maybe it was a temporary glitch or internet connection issue