redstone lamp working improperly

This is a very old map that had the MC-179858 glitch, which I fixed. But now I'm working on a lighting system, and some redstone lamps won't turn off or on. Is it possible to fix this glitch?

 

Steps to Reproduce:

1. I placed the lamp normally.  
2. Connected it to redstone dust and a daylight sensor.  
3. The lamp did not turn on.  
4. Placed a redstone clock underneath, and the lamp turned on.  
5. Removed the redstone clock, and the lamp did not turn off.  

Observed Results:
The redstone lamp does not turn on or off properly.

Expected Results:
The redstone lamp should turn on and off as expected when powered or unpowered.