Called today, and after 2 calls and 15-20 minutes, the support drone acknowledged that this is a known problem. Told me to try again in 24 hours. 

Really.

Same problem in Journal Entries, but I'm usually not doing a lot in one sitting. Working on transaction entry now, and IT IS A MAJOR PROBLEM!

Tried sending a Feedback to whomever, but after I clicked on the Feedback link, the entire menu quit working.

I think Intuit is really not interested in fixing anything. Just making more money.