Cisco Bug Search Tool lists the only known affected release as 15.6(2)SP, as shown below:Known Affected Releases:(1)15.6(2)SP However, this issue also exists in 16.07.01. Router is an ASR920 4SZ-A.
I am running into the same issue and Cisco TAC is also telling me that I need to RMA the device. Does anyone at Cisco have any further insight into what is happening or why?