So I have two interesting bugs that I cant find any info about -

The first, a phantom magic shield effect keeps following me even if I don't have an active magic shield. This has followed me through teleports, saves, sleep, etc. It is not on my person, like most shields are, but sort of floats around the screen. I could probably just go to an earlier save, but Ive done so much, I really don't want to. Any ideas on how I can get rid of it?

The next bug is a resurrect bug. I resurrected the npc Corinna the summoner by accident- but now, I can't get rid of her. Thing is, you can't see her or anything, you only know she is there if your mouse pointer lands on her. I can't banish her, she doesn't fight, and has even lasted through sleeping. Now she just quietly follows me around where ever I go. This would be fine, but i think these two bugs are related somehow, because they are both phantom effects that follow me, and I'm afraid the issue could potentially get worse the more I summon, resurrect, activate status effects, etc.

I'm thinking maybe clearing a cache would help, but I don't want to delete things I shouldn't. Can anyone give me a step by step for this, or provide some other advice on how to get rid of it? Should I try a clean install of the game? Any advice would be really appreciated.

Im running this on a windows 10 laptop, if that helps.

See screenshot below to see what I mean.