After installing new HD, can't buy from App Store

I've had all my Apple services running fine for about two years. I've been running Big Sur for awhile, and updated to OC 0.7.5 two weeks ago. Everything fine. Then I put in a new nvme drive, re-installed Big Sur, and did a Migration. Now iMessage still works, but I can't buy from the App store. It keeps asking me to log in. I put in my user/pw, but it just keeps asking me.

One thing I've noticed, my System UUID is different in System Information than it is in my config.list smbios section. That seems related.

submitted by /u/asdf072
[link] [comments]