Getting the "Unable to verify license signature" error message when trying to activate PD2026

I have an active subscription to Parallels Desktop Pro. When I try to activate Parallels Desktop 2026, I'm getting the "Unable to verify license signature" error. I've tried the terminal command suggested in the knowledge base article "Activate Parallels Desktop upon getting the 'Unable to verify license signature' error message" to no avail. Any advice on how to proceed.

 

I'm getting this as well, tried logging out and back in but will not activate with my key.

 

Same issue, installed PD2026 and cannot activate valid Pro licence.
At one stage the Try free for 14 days button did appear, but now it does not.

 

+1 for another upgrade fail. I also have a valid, active Pro license, and also tried the fix referenced by the original poster. I even tried a full uninstall/reinstall. Still can't use the software I paid for.

 

Just found this on their support site:

Some of our customers have encountered the message "Unable to verify the license certificate" when trying to activate the Parallels Desktop 26 update.
Rest assured, we know the situation and are working on a fix.
Click the Get Updates button above to be notified about the fix.
Workaround
We recommend waiting for a fix from our side that will be automatically delivered via in-app updater.

1. Download the latest build of Parallels Desktop 20 from the page.
2. If you don't want to wait for the fix, please get in touch with our Support team.

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