Troubleshooting

Cannot view children of widgets.Scroll

Set min-height: 100px; or min-width: 100px; to your widgets.Scroll in CSS. Where 100px you can set any value.

Alternatively, set vexpand=True or hexpand=True to your widgets.Scroll.

Render issues or Unresponsive UI after wake up from suspend

If you use Nvidia, see this: Preserve video memory after suspend.