Report Builder Failing

Hi

Is anyone else having issues with Report Builder today?  I'm trying to refresh a couple of reports with over 100 queries each, but if I try to do more than one or two at a time it crashes with a "A system level error has occurred" message. It's usually fine and I can run the whole thing in one go.

I'm also getting "Your session has expired" about every fifteen minutes.

This has made what should have been a 20 minute job take three hours so far (and I'm only about 3/4 done)