I was in a game, while having equipped elder sword. I got into melee with a fire team, used the sword, got hit to low health, then ran away.
After I had ran away, I discovered that my weapon was forcefully defaulting into the basic claws, even though I had the sword equipped. In the equipment wheel I couldnt choose anything else, not even the heal. The wheel selection was just flickering into the claws. I could still attack with the claws though, but all the equipment in my wheel was useless since I couldnt select it.