Running windows 64bit version 15/15.1 on Windows Server 2019.

License screen shows CSO License valid through March 5, 2024.

Update: Found the problem, please ignore.

Edited 11 Aug 2023 by dsmith

Glad you found a solution. To others who may stumble upon this thread, running prince with a flag will show you the license prince is using:

prince --show-license

And this command will tell you where prince is looking for the license file:

prince -v foo.html

Edited 15 Aug 2023 by howcome