I've been successfully using a Roland ua22 for some time, now I get a message that it isn't supported. I've tried rebooting, but no luck. I'm using the latest version of the daw. Any ideas appreciated. Thanks.

Hi Merhere, Basically, multitrack is at the mercy of Apple to get this right, and I have no control over what interfaces work or don't work, but if it works with iOS, it will work with multitrack. Did anything change in your setup, like an iOS update? Unfortunately I don't have a UA-22 to try out, but noticed that the roland compatibility page:
http://roland.com/support/article/?q=in ... d=62482032
Only lists iOS (7.0 or 8.1 through 8.4) as compatible, but this could be because they just haven't updated the page for iOS 9 yet. I can't think of any reason why that device would suddenly not be compatible. Does it work with anything else, like a mac?

Are you using an Apple CCK/30 pin to lightening adapter? Sometimes the knockoffs don't work at all, and I've read elsewhere that they can just stop working.