Today I got the message "The SDK online activation key could not be found" when trying to print a VPE document in the Studio. The document is not printed. This has worked for years. It works when the .exe is run, but not in the Studio. I have the same problem with DataFlex 19.1 and DataFlex 20.1 but not with DataFlex18.2. However, in 18.2, I use VPE 7.1, but using VPE 7.1 instead of 7.2 in newer DF Studious give the same activation key error.
I also tried VPE 7.2 in DF 18.2 and that worked.
I use the VPE classes from StarZen and Windows 10