Hello Ian Teacher 

Please try to reset the license from your RWS account as described in this article: https://gateway.sdl.com/apex/communityknowledge?articleName=000001616

Thank you,
Sorin

thanks, it's worked. And Studio 2021 also works. But 2019 won't activate. Error message "evaluation expired (37)" Then activate failed, invalid product key...

Hello Ian Teacher 

Studio 2019 cannot be used with a 2022 license. With a license (any license) you can use 2 versions of Studio, the one for which the license is intended and the previous version. So in your case you can use 2022 and 2021.

Thank you,

Sorin

Hello Ian Teacher 

Studio 2019 cannot be used with a 2022 license. With a license (any license) you can use 2 versions of Studio, the one for which the license is intended and the previous version. So in your case you can use 2022 and 2021.

Thank you,

Sorin