Things with dynamic lights (like torches and candles) don't draw their dynamic lights properly until the player fires his weapon.
An easy way to try this is Doom 2 MAP25. The candles will only light up when you fire your pistol.
Tested with lights.wad autoloaded; lights.wad taken from the SVN which was built from the lights project in gzdoom.sln.
			
			
									
						
										
						[r129] Dynamic lights invisible on level start
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