Sidebar displaying incorrectly when main window was maximized previously

[afentoe]

When I have maximized the main ShowMIDI window, and then open the sidebar, the sidebar is not displayed correctly, see screenshot.

I have this issue on Windows 11, so hopefully you can reproduce this.

I think when the window is already maximized, it will not resize further to the right, because it has a fixed size, in maximized state.

Note: normal behavior:
Again, not sure how this behaves on a Mac, but on Win11 when the main window is not maximized, and I open the sidebar, the main window will resize and expand to the right to make space for the sidebar. All is displayed correctly in this situation.