I was registered on my 975u1(Factory Unlocked from Samsung) for the One UI Beta. Yesterday I swapped carriers from Sprint to Verizon. The One UI Beta App now tells me either my account or phone aren't registered for the beta.
I have Android 10 and One UI 2 correctly installed.
I was registered for the beta on my 975u1, have the beta installed as well. However I recently switched carriers and can no longer access the One UI Beta app, it tells me my account or phone are not registered.
OP has been updated with the following information: