I found that, for some reason, filling up the area with the Ghost Lighting with leaves and letting the leaves decay make the lighting go away. I have no idea why it works but it's a good way to remove it.
Sadly, you can only place decaying leaves with commands, so if you want to remove it on, say, a survival world, you're out of luck.
This glitch still hasn't been fixed and I have yet to know what causes it.
Joan Cruz
I found that, for some reason, filling up the area with the Ghost Lighting with leaves and letting the leaves decay make the lighting go away. I have no idea why it works but it's a good way to remove it.
Sadly, you can only place decaying leaves with commands, so if you want to remove it on, say, a survival world, you're out of luck.
This glitch still hasn't been fixed and I have yet to know what causes it.