Every once in awhile I open sonar pro and I get message , no audio device, I go to edit , preferences and my line 6 audio device has disappeared from options to select. this has happened a number of times and is getting frustrating. this time I was not successful in re configuring the devices (also not recognizing akai mpk mini). any help would be appreciated...

I uninstalled - Amazon Music, now my line 6 device is listed and works in Sonar. I think that music app corrupts the system so you can't record content?
 
Meanwhile, prob still happens... I can open sonar and everything is working fine, or it's missing devices... can happen anytime? This system is still new to me so need to optimize windows 10 to work with sonar better...