- changed the 2D draw abort check to use a dedicated variable, that gets set in Begin2D and unset at the end of D_Display.

This is really all the extent where 2D draw operations may be allowed. Trying to detect this from other variables is not reliable.

src/d_main.cpp

@@ -937,7 +937,7 @@ void D_Display ()
 		I_FreezeTime(false);
 		GSnd->SetSfxPaused(false, 1);
 	}
-
+	screen->End2D();
 	cycles.Unclock();
 	FrameCycles = cycles;
 }