Thanks Michael.
A direct import of the WAV results in same issue (clip duration just increased by 1 frame, 12:03:09)
I have played around with the Import settings e.g importing at DNxHD 175 X MXF, unchecking/checking “Sample rate convert source sample rate to project sample rate” but problem still persists.
Avid does ask me for Audio Start-Time Options: I import at 23.98
Is it also a problem if files are WAV instead BWF?
It seems that there might be an easy fix by changing a simple setting somewhere but just can’t figure out which one it is.