We saw this quite a bit when we were running 9.1.x. Haven't seen it yet in 9.2.x. Your best bet is to open an SR with McAfee support.
Yep, had a couple of tickets open with McAfee on this. Just wanted to throw out the question to see if others are experiencing the same thing. I'm also worked with a McAfee architect to go through a "health check" of our environment. Didn't see anything obvious that was wrong with how I configured things. It was a good session with him though.
Also got some insight into some new features in 9.3. Looking forward to it.