I tried to open a drawing by double clicking on the file name (as I typically do without problem) and got a license error:
Unable to initialize adlm.
Internal Error Message: <Error initializing the Usage tracking component.>
Error Code: <-104>
When I tried to open the program directly I got the same error.
Then I used a shortcut I have to a reference drawing and it opened without incident. Thereafter the other two methods worked as well.