Anyone else having issues since Collector v39?

We got v39 on Tuesday.  that night, and last night, we had a couple collectors that seem to lose connectivity with everything.  We'll get a couple hundred alerts for Host Status / IdeInterval for every server the collector monitors.  They 5 minutes later all the alerts clear.  Very strange.

I reinstalled the collector software on one of them so we'll see what happens in the next 24 hrs, but wanted to see if I was alone with this issue.

THanks.