Hi Marco,
Not sure if this has ever been resolved.
But we recently installed Oracle Client 19 64bit and PLSQL Developer 11 64bit on a Windows 10 PC encountered the same problem.
Here's the content of the Support Info screen:
PL/SQL Developer
Version 11.0.0.1762
01.100458 - 20 user license...
Apologies if this question has already been asked but I couldn't seem to find it in the forums. Is there a way for me to transfer my license from my old PC to a new one. My desktop is about to be replaced and I wanted to make sure I'm able to use PL/SQL Developer on my new Desktop before I...