Every time after I reboot my PC, TeamViewer wants to update again

I have v15.19.5 and update to v15.61.4. The update is successful ("Your version is up to date").

However, after I reboot my PC, TeamViewer shows that I am back to v15.19.5 and I need to update again. It happens every time after I reboot my PC.

How can I make it stay at the latest updated version??

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