Manjaro Linux (Proton Experimental, KDE, 5.11.2-1-MANJARO kernel).

Game crashes as it is being launched via steam. I have a crash log, which the crash dialog asks me to send, but doesn't tell me where or how to send it. So here ya go:
---------------------------------------------------------------------------------


Sunday, 28 March 2021 @ 08:13


ERROR ID : [ GL_INVALID_ENUM in glMatrixMode
Source: GL_DEBUG_SOURCE_API
Type: GL_DEBUG_TYPE_ERROR
Severity: GL_DEBUG_SEVERITY_HIGH ]


---------------------------------------------------------------------------------



Microsoft . Xna . Framework . Graphics . OpenGLDevice . DebugCallback (Microsoft . Xna . Framework . Graphics . OpenGLDevice+GLenum source, Microsoft . Xna . Fr
amework . Graphics . OpenGLDevice+GLenum type, System . UInt32 id, Microsoft . Xna . Framework . Graphics . OpenGLDevice+GLenum severity, System . Int32 length,
SystemIntPtr message, System . IntPtr userParam) [0x00078]( )

<67c0fef342714aea8325f2b7d77de1f0>:0 . <67c0fef342714aea8325f2b7d77de1f0>:0 ( )

(wrapper managed-to-native) SDL2 SDL . SDL_GL_SwapWindow ( intptr )

Microsoft . Xna . Framework . Graphics . OpenGLDevice . SwapBuffers (System . Nullable`1[T] sourceRectangle, SystemNullable`1[T] destinationRectangle, System .
IntPtr overrideWindowHandle) [0x00300]( )

<67c0fef342714aea8325f2b7d77de1f0>:0 . <67c0fef342714aea8325f2b7d77de1f0>:0 ( )

Microsoft . Xna . Framework . Graphics GraphicsDevice . Present ( ) [0x00024] )

<67c0fef342714aea8325f2b7d77de1f0>:0 . <67c0fef342714aea8325f2b7d77de1f0>:0 ( )

Microsoft . Xna . Framework Game . EndDraw ( ) [0x00015] )

<67c0fef342714aea8325f2b7d77de1f0>:0 . <67c0fef342714aea8325f2b7d77de1f0>:0 ( )

Microsoft . Xna . Framework Game . Tick ( ) [0x0029a] )

<67c0fef342714aea8325f2b7d77de1f0>:0 . <67c0fef342714aea8325f2b7d77de1f0>:0 ( )

Microsoft . Xna . Framework . SDL2_FNAPlatform . RunLoop (Microsoft . Xna Framework . Game game) [0x00800]( )

<67c0fef342714aea8325f2b7d77de1f0>:0 . <67c0fef342714aea8325f2b7d77de1f0>:0 ( )

Microsoft . Xna . Framework Game . Run ( ) [0x00037] )

<67c0fef342714aea8325f2b7d77de1f0>:0 . <67c0fef342714aea8325f2b7d77de1f0>:0 ( )

AtTheGatesGame ProgramCommon . RunGame ( ) [0x000eb] )

<c9d889ce03c94b57a7703db991df7547>:0 . <c9d889ce03c94b57a7703db991df7547>:0 ( )

AtTheGatesGame MainEx (System . String[] args) [0x000c2]( )