Window remains blank after starting flatpak app

[baskin77]

Description Everytime I open the Application the WhatsApp for Linux window opens up, but it remains blanc.

I have reinstall the flatpak package from scratch and tried to remove all related application folders in between.

Also I tried --user and --system install, but always the same problem. By the way a --system installation also installs:

2. [✓] org.freedesktop.Platform.GL.nvidia-470-199-02 1.4 u flathub 273.3 MB / 274.2 MB
3. [✓] org.freedesktop.Platform.GL.nvidia-470-223-02 1.4 u flathub 270.6 MB / 271.5 MB
4. [✓] org.freedesktop.Platform.GL.nvidia-470-239-06 1.4 u flathub 272.8 MB / 273.8 MB

To Reproduce Happens always, regardless if I start via the Menu Icon or flatpak run

Expected behavior I expect to see my whatsapp content, or a barcode which I can use to connect.

Screenshots

Environment

• Distro $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 22.04.3 LTS Release: 22.04 Codename: jammy

• Package $ flatpak info com.github.eneshecan.WhatsAppForLinux

Enes Hecan - Unofficial WhatsApp application

      ID: com.github.eneshecan.WhatsAppForLinux
     Ref: app/com.github.eneshecan.WhatsAppForLinux/x86_64/stable
    Arch: x86_64
  Branch: stable
 Version: 1.6.5
 License: GPL-3.0
  Origin: flathub

Collection: org.flathub.Stable Installation: user Installed: 13.1 MB Runtime: org.gnome.Platform/x86_64/45 Sdk: org.gnome.Sdk/x86_64/45

  Commit: 23edaa54004e8d09b127a65131676285f75e9fc40917169058fbf08ef63befa6
  Parent: 9c40bc3fad43b7d2916171783a1639415ed4ffccb0492c67344a50d1745a0106
 Subject: Update 3 modules (ab693d55)
    Date: 2024-04-25 08:57:31 +0000

• Desktop Environment or Window Manager [e.g. Gnome, i3wm] $ gnome-shell --version GNOME Shell 42.9