I am on a server (Timeless PVP Factions) with blaze spawners able to be harvested, and I have made a blaze farm; however, my lighting isn't working to turn off the spawners. Usually light will work, but when the lights are on, blazes are still spawning. See this picture:
As you can see, the blaze in the screenshot just spawned even though there are MANY lights on. What can I do to make sure that these spawners are deactivated when lights turn on?