So I have this weird problem with my assignments. When I want to grade them, I just see two spinning wheels. One where the document is placed, and the other where I can give feedback. First I thought it must be an issue with the document converter (unoconv or Google Drive) but I check both and tested them and they work fine. Then I went back to the assignments and noticed that when I click on the next assignment (arrow in the top right) then it loads the next assignment. I can go back and then it also loads the first assignments. But I get the spinning wheel every time I enter into the "grading mode" for the first time. Any idea of what the issue might be?
I also have switched to the default theme and updated to the newest version but nothing changed. (on a development site)
Currently using Moodle 3.8.