thanks every body for the answers. I tried many thing today and found the problem. I had all roms on a USB Stick which I used with the previous Recalbox Versions. Look like the Stick was somehow read only and something was messing around, maybe old setting which I also found on the stick. When I unplug it and configured the system to use the internal storage all was working just fine. I did a reinstall again to be sure all working fine in the future. Best regards
