This window appears somewhat regularly when booting up the desktop.
I have version 3.6 installed.
This is extracted from the logfile.
08-01-2022 05:45:25.547 DEBUG GetModuleFileNameEx failed for processId: 2516 0
08-01-2022 05:45:30.082 INFO Received message from another instance to open our main window!
08-01-2022 05:45:30.569 DEBUG GetModuleFileNameEx failed for processId: 2516 0
08-01-2022 05:45:35.569 DEBUG GetModuleFileNameEx failed for processId: 2516 0
08-01-2022 05:45:40.089 INFO Received message from another instance to open our main window!
08-01-2022 05:45:41.063 DEBUG GetModuleFileNameEx failed for processId: 2516 0
08-01-2022 05:45:46.569 DEBUG GetModuleFileNameEx failed for processId: 2516 0
08-01-2022 05:45:50.087 INFO Received message from another instance to open our main window!
08-01-2022 05:45:51.597 DEBUG GetModuleFileNameEx failed for processId: 2516 0
08-01-2022 05:46:00.092 INFO Received message from another instance to open our main window!
08-01-2022 05:46:00.349 DEBUG GetModuleFileNameEx failed for processId: 2516 0