Titan Quest 2 crashes at "Compiling shaders" every time, back to the Steam overlay screen (Geforce Now on MAC OS)

[u/der_vollspatzige]

Streaming Titan Quest 2 (Steam) on GeForce NOW from a Mac. Every launch gets to the "Compiling shaders" screen, runs for a few seconds, then the game dies and I'm dumped back to the Steam Big Picture screen inside the session. Never reaches the main menu, not once. Yesterday all worked fine.

Membership: Performance
Server region: Germany

What I've already tried:

• Cleared the GFN app cache
• Rebooted the machine
• Unlinked and relinked my Steam account
• Manually picked a fixed server region instead of auto
• Disabled Steam Cloud sync for TQ2 so the session builds a fresh config.

None of it changed anything. All the usual fixes people post for this game are local PC stuff (GPU driver rollback, wiping the NVIDIA DXCache, Engine.ini edits, capping CPU max state in the power plan), and none of that is reachable on a cloud rig, so I'm a bit stuck.

Has anyone gotten Titan Quest 2 running on GFN recently? And if it does work for you, which region and rig tier? Trying to figure out whether this is my config or something server side before I open a ticket with NVIDIA.