Invisible arrangements are glitching

Hey, I recently started creating a program in app inventor.

If I don't have my computer with me I use app inventor on my phone (I know it's not supported on my phone but somehow it works) and recently I was creating this program on my phone,
then I inadvertently refreshed the page and all the invisible arrangements became visible.

Seemingly it is marked that the arrangements are invisible, after starting the application they are also invisible, but in the editor it is very annoying because my application has no screens, it just relies on the fact that individual arrangements appear and some disappear. Is this a bug or did I inadvertently click something, and if it is a bug is there a way to fix it?

We do not know, you need to provide more information. Show your relevant blocks, and how you set your virtual screens' visibility.