Random wrong rests appearing and crash.

1. Open the MS4, it says that the file is corrupt (see the attachment)
2. There are appearing strange new rests in different bars and instruments (each time the appears comes in different places, as I can see that.)
3. Trying to change the rests duration is leading to a crash, but not allways.
4. Opening after crash is followed by appearing new rests in random bars and instruments.

The file was originally created in MS 4 test builds, maybe a month before the release.
Copying the notes to the new made orchestra template is making the new file corrupt as well. There would be very nice, If I could save the music somehow ))
Thank you!