When you're returning from the other dimensions (nether/end), and breaking the blocks that emit lights, they don't update the light around it. Keep in mind this issue is different from
MCPE-58182 and MCPE-69037.
Step to Reproduce
1. Go to the nether/end, and then return to the overworld.
2. Break any blocks that emit lights, like torches.
The light disappears since the emitting blocks aren't there anymore.
The light is still there, despite there are no light-emitting blocks anywhere around.