IOS XE 17.03.03
During Golden Capsule upgrade, standby supervisor hung on restart during initializing hardware, and blue flashing light on locator appeared. We have tried reloading, reloading IOS on main supervisor, switching card locations, shutting power for extended period of time, and letting it initialize for an extended period. Switching, Catalyst 9000
We cannot boot break as it never initializes.
Found a known bug in previous versions of IOS XE but non listed for Amsterdam.
(This is the 7th stack completed, only this standby supervisor has failed)