I can confirm that there is something to your observation.

At first, cut and paste worked correctly until I used the mouse to highlight just one measure. Then I used both Ctrl+x and also Edit, Cut and each time, the next paste gave me the bars that I had last copied, not cut. This might be the correct behavior, though. This from Help, Edit Menu:

Tip: Remember that the copied section remains in the clipboard and can be repeatedly used. Example: If you're inputting a song with verse, verse, bridge, verse you can just copy the first verse to the clipboard, and then repeatedly paste in the other verses. The information on the clipboard remains intact even if you load in a new song, which means you can copy and paste between songs.

I noticed there is a difference in what Cut does depending on whether the measure is highlighted, or just with the mouse cursor there. When highlighted, it deletes the measure and collapses the song. When it's just the mouse cursor, only the chord is erased.

I'll try more tomorrow.

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