cannot remove existing audio stream from video file

Hi,

I’m just wondering. I’ve been replacing audio in the video files with no hassles. Then one day it doesn’t work. I get this ‘cannot remove existing audio stream from video file’ and after that I’ve been trying to replace with no success.

Any suggestions?

I’m using Cubase Elements 8
3.2 GHz Quad-Core Intel Xeon
Mac osX 10.9.5

ok.

so after a few days I tried again and now it’s working. Very strange.