Wavelab breaks exchange with Cubase

No, I didn’t touch the filenames or locations as I saw the warning in the manual prior to setting the Wavelab project up. In fact, I didn’t do anything to the files after importing except for saving them when prompted upon quitting wavelab.

That’s what I don’t know. Comparing the metadata from the two audio files that are still linked with all the delinked others, it does appear that they may have changed. But I didn’t work on them yet so I don’t know what could have caused it.

Here is what I did:

I created a new project
A new basic cd
Imported the audio files
Arranged them in order
Converted the basic cd to a montage
(everything looked good to this point)
Saved the montage. Saved the basic cd. Saved the file group. Saved the project.
Quit Wavelab and was prompted to save various audio files.
When I reopened the project the montage was still there but with most of the yellow exchange indicators missing. And the basic cd that I had saved as a tab in that file group was also missing all but two songs.