[2022] Endless loop bug in Ember's quest

I was doing the quest that gets you Ember as a companion ("Tower Full of Trouble") and got caught in an endless loop at the end of it. It was where you go up the hill at the end, where the spirit called Windsorrow is. At this moment, Ember tells me: "It's done! The spell is set. Follow me. We should be able to see it materialize!" When I followed Ember, the quest would never complete. Instead, it kept insisting I run in a circle doing that part of the quest over and over and over, since it would never actually complete. I took a screenshot of the moment where the quest went buggy.
I'm on PC, EU server, on a wood elf sorc.