I now have a CPR file that demos this bug in action!
https://app.box.com/s/ik7b1tnid9p2jk8cz9un99ulp4pu6qrk
In the demo project there are two tracks, “Kick” and “Snare”, each with 5 lanes of takes, inside a folder track that has group editing enabled.
When you load it you will get warnings about missing files… just ignore these by closing the dialog box.
- With the arrow tool, select the take in Kick lane 5.
- On the menu, select “Edit > Move to > Front”
- Select the scissors tool.
- On the Kick track OVERVIEW LINE (not one of the lanes) make a cut with the scissors. Observe the cuts that have been made to the Kick and Snare takes.
What happens is that cuts appear on all 5 of the Kick takes, and on only one of the Snare takes.
Congratulations, your takes are now out of sync.
If you now disable and re-enable “group editing” on the drums folder track, you will be told “the tracks in this folder are no longer in sync”
Badda-bing.
Maybe someone can repro this on Cubase 8 and verify it’s still there?