Something strange seems to have happened in a assign activity.
A lecturer tells me in a course with 34 particpants suddenly 0 submissions show up.
It also says no participants - I would guess permissions on the assignment got changed maybe...someone did something!
Thanks for your hint, Emma.
That's viewed as Admin… so it is probably not this.
P.S. But that lead me to the solution:
Self enrolment, the enrolment method all students were enrolled with, was deactivated.
Re-activated and everything good.
Thanks a lot!