After spending the better part of my day troubleshooting this issue thinking it was related to my code or database I came across this sticky in the forum. Couldn't Web Assist have alerted those who own Data Assist about this issue back in January when these posts were being discussed?
Or how about using Memento for something other than selling the latest extension?
I followed the suggestions here and it all now works as it used to. Sadly the cost to me was hours of time I can not get back.
In the future can WA be proactive about known issues like this?