Seeing some problems with Sametime 8.5

We are running one of our development environments on Sametime 8.5. We use both Domino HTTP, a very nice Domino based web application, and Sametime. Unfortunately, we are seeing a rather large number of crashes on our Sametime 8.5 server. Are other customers or developers seeing this behavior?

We are thinking about backing down our Sametime 8.5 server to Sametime 8.02 in order to help with stability.