Vertical scroll does not work, can't properly resize APP (Matlab app designer)

I created months ago a two-panel app, but till now I used only the left panel. Vertical scrolls appeared on small screens.

Recently I modified the right panel, adding new function. From that moment, the app does not resize properly.

Below, how I see it on App design:

Below, how it opens on small screens. I can see only the HALF-bottom part of the app and a huge empty grey space below it:

"Scrollable" option is on for both left and right panels. You can see a vertical scroll appearing between the panels, but it starts in the middle of the app and moreover it is not interactive.

In my previous working app, I hide the right panel and I only worked on the left, and the vertical scroll bar appeared and worked just fine, see below:

Answer 1

[Mahdi Hayati]

give a little space from right and down of your app. your main figure should be bigger in size than your panels, so the scroll option will work.