For most switches Cisco indicates a recommended release (with a small gold star) in the download section (mostly 15.0.2-SE6). However for the 4900M no version is endorsed, so I am doubting a bit between 15.0.2-SE6 and 15.2.2E. Any suggestions?
This issue happens after a few months when polled bij Cisco Prime or other management software. Is fixed in newer releases, for sure in 5.2.1.N1.7. I forgot the caveat number and can't find it right now.