diff --git a/src/r_poly_sprite.cpp b/src/r_poly_sprite.cpp
index 87d52b98f..453ab2d00 100644
--- a/src/r_poly_sprite.cpp
+++ b/src/r_poly_sprite.cpp
@@ -226,6 +226,9 @@ void RenderPolySprite::Render(const TriMatrix &worldToClip, AActor *thing, subse
 		uint32_t g = (args.uniforms.color >> 8) & 0xff;
 		uint32_t b = args.uniforms.color & 0xff;
 		args.uniforms.color = RGB32k.RGB[r >> 3][g >> 3][b >> 3];
+
+		if (blendmode == TriBlendMode::Sub) // Sub crashes in pal mode for some weird reason.
+			blendmode = TriBlendMode::Add;
 	}
 
 	PolyTriangleDrawer::draw(args, TriDrawVariant::DrawSubsector, blendmode);
diff --git a/src/r_poly_triangle.cpp b/src/r_poly_triangle.cpp
index 88ee02a36..367d3df40 100644
--- a/src/r_poly_triangle.cpp
+++ b/src/r_poly_triangle.cpp
@@ -371,7 +371,9 @@ FString DrawPolyTrianglesCommand::DebugInfo()
 	}
 
 	FString info;
-	info.Format("DrawPolyTriangles: variant = %s, blend mode = %s, color = %d", variantstr.GetChars(), blendmodestr.GetChars(), args.uniforms.color);
+	info.Format("DrawPolyTriangles: variant = %s, blend mode = %s, color = %d, light = %d, textureWidth = %d, textureHeight = %d, texture = %s, translation = %s, colormaps = %s",
+		variantstr.GetChars(), blendmodestr.GetChars(), args.uniforms.color, args.uniforms.light, args.textureWidth, args.textureHeight,
+		args.texturePixels ? "ptr" : "null", args.translation ? "ptr" : "null", args.colormaps ? "ptr" : "null");
 	return info;
 }