Screencasts captured by KDE's Spectacle render with a green overlay solely in VLC.

As was first reported with bugs.kde.org/attachment.cgi?id=183089&action=edit, when I capture a screencast in spectacle-6.4.2-1.fc42.x86_64, I see a green sheen:

Screencast_20250709_142118

However, this doesn't reproduce when it's viewed in firefox-140.0-1, gwenview-25.04.3-1, or dolphin-25.04.3-1's previewer, whether in thumbnail form, or when played.

Environment

This doesn't reproduce on my desktop (ignore the inconsistent QStyle, 🙄):

Operating System: Fedora Linux 42
Qt Version: 6.9.1
Kernel Version: 6.15.7-200.fc42.x86_64 (64-bit)
Graphics Platform: Wayland
Graphics Processor 1: AMD Radeon RX 5700
Graphics Processor 2: AMD Radeon Graphics

Instead, solely my laptop:

Operating System: Fedora Linux 42
Qt Version: 6.9.1
Kernel Version: 6.15.6-200.fc42.x86_64 (64-bit)
Graphics Platform: Wayland
Graphics Processor: AMD Radeon 780M Graphics

...where:

1. dnf5 info with vlc returns:

   Name            : vlc
   Epoch           : 1
   Version         : 3.0.21
   Release         : 24.fc42
   Architecture    : x86_64
   Installed size  : 373.6 KiB
   Source          : vlc-3.0.21-24.fc42.src.rpm
   From repository : <unknown>
   URL             : https://www.videolan.org
   Vendor          : Fedora Project

2. ...whereas with spectacle, it returns:

   Name            : spectacle
   Epoch           : 1
   Version         : 6.4.2
   Release         : 1.fc42
   Architecture    : x86_64
   Installed size  : 6.1 MiB
   Source          : spectacle-6.4.2-1.fc42.src.rpm
   From repository : <unknown>
   URL             : https://www.kde.org/applications/graphics/spectacle/
   Vendor          : Fedora Project