Thanks for asking your Microsoft contact. I'm a bit disappointed by the response.
I am almost certain the reason is because whatever storage space uses to ID a drive has changed with the new hard drive main board. I'm not sure if that is a serial#, guid, or what. The pc sees the drive fine, shows it is a raw partition just as it should be, just just doesn't detect it is the same drive anymore. The link he pointed to wasn't really relevant. I know the storage spaces work in a normal scenario of removing and replacing a drive, or unplug replug of same drive.