Hi Noel, I use an ASIO driver it is usually fine (after I uninstalled and rebuilt it after Win 10 1709) but this issue has always been there. I put up with it because once rendered things were fine and I really only use BIAB to make the tracks to finish in Sonar. I don't use BIAB except to generate the files and send each track out as a flat .wav. (By flat I mean I centre each track, set all the volumes etc the same in BIAB before exporting them.) I then normalise each track to the same starting point then balance them out and finalise them in Sonar.

Tony


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