Slip visual doesn't look right in stacked stems mode

[cokeramirez]

Bug Description

The slip visual effect of having the bottom half the waveform moving different doesn't really works on the stem stack mode, see example

2026-08-06_22-57-51.mp4

Version

2.6-beta-368-g00fae74dbf

OS

Windows 11

[ronso0]

Whoopsie..
@PredellaN do you have time to take a look?

[cokeramirez]

This is not a breaking bug in my opinion.

Also I thought about it I think one option would be to show the 4 tracks smaller in both halves, 8 in total 😣

[ronso0]

Well, we need some kind of slip preview, so if it's 8 half waveforms for now that's okay IMO

[PredellaN]

Proposed fix in PR #16856