I know I saw this quite late… but I had this same problem a few months ago. You don’t need to do an RMA. I was helped here before.
Check out this thread: Here
I too reached 2048 folders before I was able to do what was suggested. Doing what they said did not cause me to have to delete any of my data or lose anything. Which I was grateful for because at the time I had just mitigated my data to the server and didnt have a second backup in place.
Hope this helps, sorry if it was too late.
