diff --git a/content/docs/games/outer-wilds-vr-mod/_index.md b/content/docs/games/outer-wilds-vr-mod/_index.md
index 95312c4..97511ac 100644
--- a/content/docs/games/outer-wilds-vr-mod/_index.md
+++ b/content/docs/games/outer-wilds-vr-mod/_index.md
@@ -23,6 +23,13 @@ Prepending `OXR_VIEWPORT_SCALE_PERCENTAGE=60` to the game's launch options can g
 
 While in VR, if you have mods that add extra items in the main menu, they will be rotated at an odd angle as well as any UIs.
 
+### Immediate crash with Proton 9+
+
+Currently, Proton 9 and above has an issue ([#8409](https://github.com/ValveSoftware/Proton/issues/8409)) causing NomaiVR to instantly crash on startup, only rendering the game window for a split second.\
+The workaround is to just use Proton 8.
+
+Do note that as Proton GE-RTSP is using the latest releases of Proton upstream, it will also not work until this issue is patched.
+
 ### Default Quest/Pico 4 controller bindings only partially work with XRizer
 
 When playing the game with XRizer and you use Quest or Pico 4 Controllers, it is recommended to use [this custom bindings file](https://github.com/user-attachments/files/19900420/oculustouch.json) ([more info here](https://github.com/Raicuparta/nomai-vr/issues/558#issue-3018649448)).