Yes, seems to be the same problem:
When i run in command line the command that you suggested the ‘lightening’ appear in the SysTray and in TaskManager the dbsrv11.exe is ~91 CPU again;
After this when i start servoy.exe it hangs again; I commented out nativeStartupLauncher for this scenario;
default databases:
application_server/database/
bug_db.db, example.db, log_data.db, pdf_forms.db, servoy_repository.db, udm.db, user_data.db
All is happening with latest downloaded Servoy install 5.1.3 for Windows
Regards