What happened was I think the Death Claw was about to grab or kill me and I pulled the Pip Boy up right as it happened. I ended up with a blured screen of my character getting hit by the Deathclaw and the controls as if I was in Pip Boy displayed on screen with no pip boy displayed not even my arm. Random bug I just thought I would report I had to exit the game for it to stop. I even have a screen shot it shows what I have just seen all is good though I was probably dead anyway. As for the reason I call it a soft lock? Well for one reason I can still interact with the invisible pip boy but it didn't do any good.