Samplitude Pro X8 Suite
Windows 11

The behaviour of the Mixer window has changed. In past versions, when I hit "Hide Tracks" the window became a narrow column showing only the master bus and no space to left or right..
Now, the window remains the same size as it was before clicking "Hide tracks" but the master bus appears to the left with a large empty space to the right. I have screenshots showing this.

I KNOW it's a minor problem, and I can drag the screen in, but it is infuriating when it worked so well before.

John