A potential issue has been highlighted on the Microsoft Operating Manager Engineering Blog.

“We’ve seen an issue relating to 3004375 that occurs due to a regression, and while it’s already been fixed (by installing 3023562), we wanted to take a minute and let you know about some of the details in case you happen to see it. ”

Full details are available here

Short version: If you have KB3004375 installed on your management servers you may need to install KB3023562