This just proves that, for some reason, your current Workbench session doesn't see license even though the license checkout command worked.
Can you try this command again and post the screenshot of the output
move "%appdata%ansys" "%appdata%ansys.old"
Also, post the output of
set
command from CMD Prompt.
On that Workbench session, click on Help -> About and see the Path to runwb2.exe (or post its screenshot for me)
You are navigating away from the AIS Discovery experience