Queues looks much better now. The only possibly problematic number is data collector's queue. Is it always like this, or it was just a short pike? Btw, by default server create DCIs for internal queue sizes. If those DCIs are configured, could you post a charts of them for last hour or two?
In fact, even your patience with this strange issue resolution is very helpful - because we are unable to reproduce this issue at our systems. And yes, Raden Solutions is owned by me and Alex.