Anyone ever encounter a glitch like this before? I just upgraded my mob trap with redstone lamps and while working on it I poked several holes in the ceiling to let sunlight in and keep mobs from spawning. Once the upgrade was complete I filled in the holes, but sunlight still appears to be getting in at certain points.
Here's the chamber with the lights on:
And here it is with the lights off:
It's not just a graphical issue either, mobs wont spawn where the light is shining in and it's seriously impacting the efficiency of my mob trap.