He's not the only one having problems.
I have finally worked around the problem by doing only one thing at a time and saving. This works 80% of the time.
I have been getting run time errors even when I have only been working on the listing for a couple of minutes.
The save button not working, not being able to get anything to work. This has been going on for 2 days. The only 2 days that I really had to write auctions this week.
I filed a support case but was only told you were working on it.