Simulator: Application.Properties (setup) - strange behaviour

Recently I have a problem with settings, called from the simulator - Ctr P :
If I make changes in settings.xml - e.g. delete properties, add others - the original (old) settings schema always appears after calling via Ctr P. No matter how often I call, restart the PC - always the old settings scheme. But the file \bin\xxx-settings.json was updated. On the real device the setting is also displayed correctly. But not in the simulator.

Work around: if I regenerate the UUID, settings works in the simulator again!
(But back to the former UUID: the old settings appear again)

Is it only me who has this problem?