How to stop the black bar at bottom from covering the scroll bar?

[JordanCClark]

Auto Resize windows to fit various vision client screen size without scroll bars

You can try adjusting the minimum size in the project settings (Client // User Interface). It should allow the windows to shrink down to it. There is also a minimum size setting for each window, but it defaults to 0 x 0. May still be good to look for a sanity check. From a personal design standpoint, I set minimum size to 10 x 10 pixels smaller than the lowest resolution I want to support. Then I design the windows to fit that minimum size.