Ok I tried the Bass in RB the hold is playing the F in Am7/F... but the push ^Am7/F plays the A.
So it must be a bug.
You can use a Hold on the beat as on bar7.3 then move it back same as in Bar3.

Attached Files (Click to download or enlarge) (Only available when you are logged in)
Fing-Pushes.png (26.53 KB, 70 downloads)