When my machine woke up and resume, My K380 keyboard goes into "inactive" model so until I forcefully kill all options related process and restart the app, my keyboard is never recognised.
Also when I and connected to my second K380 keyboard I have, it doesn't recognise the my machine is connected to other keyboard and none of setting I stored for either keyboard works. This has been going on more than a year and I am hoping you can fix this.