Office Home and Student 2019 license bound to Microsoft account but keeps prompting for activation

Hello,

I own Office Home and Student 2019 perpetual license, and this license is already bound to my Microsoft account. I can confirm the license exists on the account.microsoft.com/services page.

However, local Office applications keep showing "Unlicensed Product" and repeatedly ask for activation.

I have completed these troubleshooting steps：

1. Signed out all accounts inside Office, closed all Office programs, rebooted PC and signed‑in again with my correct Microsoft account.
2. Cleared local Office license cache by running ospp.vbs commands.
3. Performed Quick Repair and Online Repair for Microsoft Office.

Unfortunately, the activation problem still remains.

I have attached two screenshots:

1. Screenshot showing my Microsoft account page with Office Home and Student 2019 license.
2. Screenshot showing Word unlicensed‑product warning.

Could you please help fix the license synchronization issue between my account and local device? Thank you.