I'm not sure if you can contact the other bidder or not ( I have not
done auction a while). I think you used to be able to. I would
definitely block the buyer so you do not have this issue with them in
the future.
I have been having the same issues for a few days. Had a programmer and
computer expert look at my machine. Cleared everything, did all updates,
rebooted computer. Still not rendering correctly. It only happens on the
new sellers hub page.