Problem with displaying the popup (except the first time)

[michaldev]

Godot version

4.1 beta 3

The same project works fine on 4.1 beta 1 and beta 2.

System information

Tested on MacOS, Fedora and HTML5

Issue description

I have a problem in version 4.1 beta 3 with a popup (popup panel). The first time it always displays correctly. Every subsequent time, I only see a black spot.

Nagranie.ekranu.z.2023-06-23.11-35-28.webm

*The same if I show popup by methods like popup_centered.

Steps to reproduce

I'm trying to reproduce it with a clean and minimal example, but unfortunately, without success. Maybe someone else has this issue or knows a way to reproduce it?

Minimal reproduction project

I'm trying to create it.

[akien-mga]

I don't see any changes to PopupPanel or Popup between 4.1-beta2 and beta3, but there have been changes to Window and Viewport which could maybe affect this. CC @Sauermann

[Sauermann]

I remember, that there have been some PRs that changed Control-minimal size calculations. I am just guessing, but perhaps it is related to that?
I am not aware that any of my PRs could cause this behavior, but that is difficult to tell for sure without a reproduction project.

[YuriSizov]

I remember, that there have been some PRs that changed Control-minimal size calculations. I am just guessing, but perhaps it is related to that?

That was in beta 2 already.

[YuriSizov]

Can be rendering related? This project, judging by the screen capture, uses GL Compatibility and it manifests in a black screen. Similar to #78608 perhaps?

[akien-mga]

Can be rendering related? This project, judging by the screen capture, uses GL Compatibility and it manifests in a black screen. Similar to #78608 perhaps?

@michaldev could test this hypothesis by temporarily running the project with the Forward+ renderer, to see if the bug disappears.

[michaldev]

Can be rendering related? This project, judging by the screen capture, uses GL Compatibility and it manifests in a black screen. Similar to #78608 perhaps?

@michaldev could test this hypothesis by temporarily running the project with the Forward+ renderer, to see if the bug disappears.

I just checked. On Forward+ there is no problem.

[YuriSizov]

cc @clayjohn

[michaldev]

Fixed in 4.1 RC 1.