You may have to record your backing tracks into another program, such as Reaper, and then play your EWI USB into that. This was discussed at length at
www.patchmanmusic.com/forum/ One person out of many was able to get his EWI to work at the same time with BIAB and he really didn't know how he did it. Most were trying just to get BIAB and the EWI to to play together and only one or the other would play. Later, Ray


Asus Q500A i7 Win 10 64 bit 8GB ram 750 HD 15.5" touch screen, BIAB 2017, Casio PX 5s, Xw P1, Center Point Stereo SS V3 and EWI 4000s.