When i try and use the /fill command to cover up lights, a light level of at least 1, sometimes up to 7 i've seen it always appears on top of said block covering them up and the only way to get rid of it is to place a block over the light coming through, it started happening not to long ago and it has caused many problems in building so i have to make it block by block now
the other screenshot is a light that won't work correctly that is still causing issues
I even tried in another world to see if its replicable and it did the same thing
It even shows the light on mobs like theres light sources above the block
Environment
Lighting Issues in building using the /fill command to cover up lights, saw in sea lanterns because they were what I used
i have a the same issue. when i mine the light is darker than it should be about 4 blocks from a torch.