Lost 1 license activation after changing name of Windows PC

SDL Trados Studio 2021 Freelance.

Using an activated instance on Windows 11.
Rebooted PC after changing name of PC.
After launching Trados dialog popped up that product is not activated.
Re-activated via activation code on RWS website Account | Licenses & Subscriptions, but now that Account page shows I have lost an activation.

How do I regain that license activation?

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