Tracks Become blank and some tracks play over each other

If you mean the picture…it’s still a white, empty square.

Great. We will add question the user if or not to copy media files.

I don’t know what the white box is but I can see my responses to you in the text above.
This is where I answered the questions you asked me

We are preparing a new version soon, it would be great if you could test again then, thanks!