Minecraft PS4 crashing since nether update when loading world.

If I am logged into my Microsoft account on PS4, when I try to load any world the PS4 crashes.  I can play worlds if not logged in but then can't play with friends. If I log in on my iPad it is fine and I can play. It's since the nether update. Corrupt files are shown but I've tried deleting these but it still happens. Error code is CE-34878-0.