I have cleared my comm messages several times but after a few hours they keep reappearing and I don't know why this is happening. On top of that, messages from up to a week ago are showing up again, despite me deleting them a few days ago. It's just annoying that I have to click delete for every single message, only for them to reappear a few hours later.

I had the same problems too, have deleted the same set of comm messages 5 times now and keep re-appearin :/

I have the same problem sometimes. It seems they are gone but a new person comms and all of them come back.

This happened to me once before, several months ago. A day or two ago it started happening again, and I have had to delete the same ship comms several times.