Please confirm when did you claim the device? Was it before or after 19.10 SDK version?
If you claimed it before 19.10, can you try the following:
To migrate a tenant:
azsphere tenant migrate
If you are prompted, log in again using your old Azure Sphere login—that is, the work or school account you used with the 19.09 (or earlier) release. After this login, you will see information about your old environment. The user identity that the command output shows might be different from the identity with which you logged in to the new environment.
Migration is a one-time, irreversible action. See "About migration"
You can add different users as administrators to the Azure Sphere Tenant but Claiming is also a one-time operation that you cannot undo even if the device is sold or transferred to another person or organization. A device can be claimed only once. Once claimed, the device is permanently associated with the Azure Sphere tenant. See "Claim your device"
Source: MSDN