That was what I planned to do next time I sat down to mes with it. I got that opportunity last night and removed the UA-25x from my mac and ran BIAB 2016 with the internal audio only and was able to create a new song, pick a style, input chords, make real instrument changes on the fly, all this for about 20 mins and did not crash once. I think we found the culprit. Appreciate everyone input. I'll will try my Scarlett 2x2 this evening and see what happens.

I will normally be using BIAB on my newer Macbook pro but am waiting for the hard drive version to show up before running it on it. That is what I normally use the Scarlett on in my studio.

Dennis