Hi Flappie,
I will try. But normally I clean these both folders everytime I change something in the DCS or Radeon settings (also when I install a new graphics driver). Windows 10, yeah I know, I am a little paranoid with these upgrades because there is a lot of issue reports every time Microsoft is "blessing" us with one of these upgrades, so I do it so rarely as possible. But I also will do it and hopefully it will resolve this problem. Thank you very much for your fast help.
Best regards,
Rene