We have been dealing with this issue for close to a year, At least on 4 different occasions through several tickets I've been told the issue is resolved, only to find out that it wasn't. The last time they told me this was with the release of the new version of Hub mentioned in the post above on June 30th. This new version of Hub did nothing to resolve the issue for us.
Having said that, I have also noticed an increase in these events in the last couple of weeks. I updated my existing ticket with this information, and so far engineering is apparently stumped.