Another problem after no mpeg audio in timeline during clips import:
When two clip are bit overlapped (example 1 second) in timeline (just to add a transition), you're in trouble with mercalli sw to fix shaking problems.
You had to:
1) apply mercalli before overlapping the clips
3) re-apply mercalli effect (a warning is displayed)
4) then you can apply transitions also
If you try to apply mercalli effect after overlap, no chance!!!