[BGFIX] Unknown object type detected: "Light shafts - linear"

[amelted]

Wallpaper Engine Background(s)
Background ID:
3299228616
Console output

linux-wallpaperengine /home/-----/dump/SteamLibrary/steamapps/workshop/content/431960/3299228616 
[1005/032208.722853:WARNING:resource_util.cc(94)] Please customize CefSettings.root_cache_path for your application. Use of the default value may lead to unintended process singleton behavior.
Cannot find directory for steam app wallpaper_engine: assets
Detected "scene.pkg" file at "/home/-------/dump/SteamLibrary/steamapps/workshop/content/431960/3299228616/scene.pkg". Adding to list of searchable paths
No "gifscene.pkg" file found at "/home/------/dump/SteamLibrary/steamapps/workshop/content/431960/3299228616/gifscene.pkg". Defaulting to normal folder storage
WARNING: Shader patches directory cannot be found, this might make some backgrounds not work properly
Unknown object type detected: "Light shafts - linear"
terminate called after throwing an instance of 'std::runtime_error'
  what():  Unknown object type detected: "Light shafts - linear"
/usr/bin/linux-wallpaperengine: line 2: 345113 Aborted                 (core dumped) ./linux-wallpaperengine $*

Desktop

• OS: Manjaro Linux
• Desktop Environment: KDE Plasma 6
• Window Manager: KWin

Additional context
i also tried specifying the asset folder location with the --assets-dir parameter with the same result.