It's honestly so fun that when I'm going through my emails in the morning, I have to delete the same emails probably about five times until they finally delete from my inbox and this has been an issue for many months now at this point I'm really surprised that yahoo has not figured out how to fix this issue. I also love that when I try to undo a delete that it just randomly select a random email to bring back to my inbox and not the email that I just deleted so that error is also super fun... not sure what the technical team is doing, but this is definitely something that they should look into