Panel 2 is the panel which is not reserving space.
1, 3, 5 are the bottom panels, so I have hidden them.
The selected line has p=0. If I change this to p=11 to match panel 4 then space is reserved. I don't know what "p" means, and it doesn't affect anything in the panel configuration panel, which is identical for panel 2 and 4.
Here is a screenshot of my panel config.
Panel 2 is the panel which is not reserving space.
1, 3, 5 are the bottom panels, so I have hidden them.
The selected line has p=0. If I change this to p=11 to match panel 4 then space is reserved. I don't know what "p" means, and it doesn't affect anything in the panel configuration panel, which is identical for panel 2 and 4.