[L4D2 - Bug] Custom Campaign Loading Doesn't Work

[ThisNekoGuy]

Software and Hardware:

OS / Distro: Arch Linux Kernel: Linux 5.17.2-256-tkg-pds-llvm Desktop Environment: KDE Plasma 5.24.4 Window Manager: Kwin GPU: Nvidia RTX 2080 Ti GPU Driver: 510.60.02 FIlesystem in use: BTRFS

System Info

Description:

Attempting to load a custom campaign, namely "Back to School," fails to load its first campaign at a certain percentage; the game freezes at 1 FPS (according to the Steam overlay) and refuses to recover after that. ALT+TABbing out of the window and attempting to tab back in just creates a frozen transparent window:

Before:


After:


This is something I have experienced with the game before, it just hasn't happened for a while.

However...

1. The Linux build of the game almost never, if it even supports this(?), drops crash dumps; if it does, I have no idea where else they would be if not in the game's root folder.
2. The only methods of communicating how I managed this is: with my launch options, my add-on list, and the DXVK-native log in the game folder :/
3. The game doesn't even produce a debug log for me to share... so I'm just going to have to share what little I know:

Resources:

• hl2_linux_d3d9.log
• addonlist.txt

Launch options (happens with both):

• gamemoderun %command% -vulkan -USEALLAVAILABLECORES -cpuLoadRebalancing
• env LD_PRELOAD="/usr/lib/libgamemodeauto.so /home/neko-san/.local/share/Steam/ubuntu12_32/gameoverlayrenderer.so" %command% -vulkan -USEALLAVAILABLECORES -cpuLoadRebalancing

[ThisNekoGuy]

This might be related to this other issue but I'm not sure:

• https://github.com/ValveSoftware/Source-1-Games/issues/3923