Bradje1,  I am researching the issue for you and it looks like there will be another release in the future to replace 5.0. At this point though if you would like you can either rollback the CMC firmware to the previous version, or ignore the error until the the new CMC update is released. Sorry again for the inconvenience. Let me know if this answers your question.
Hi, We are seeing a lot of the following alerts "Chassis management controller (CMC) redundancy is lost". and 30 seconds later "The chassis management controller (CMC) is redundant" on our fleet (47) of chassis, since upgrading the firmware to 5.00. It is occurring daily on some chassis, which prior to the update maybe got such an alert once a month, if that. Is anyone else seeing this problem?  Thx, John Bradshaw
M1000e CMC Redundancy issues since Firmware 5.00 upgrade