When VV is turned on, the lighting can glitch a little when there is sunlight going into a cave.
How to reproduce: dig yourself into of a cave and look at the blocks near your dug hole from a very specific angle. recommended during daytime when the sun is not at a 90 degree angle.
What should happen: blocks should render normally
What happens: the sunlight can be seen on the edges of blocks
Image was taken in a world with seed 718354465823898472 at around 264 57 156.
Linked issues
is duplicated by 9
MCPE-202018
Sunlight appearing on the edge of blocks underground.
Resolved
MCPE-216805
Vibrant Visuals: Severe light leak in a specific cave
Resolved
MCPE-202029
Vibrant Visuals: Lighting Spills in Holes
Resolved
MCPE-218032
Vibrant Visuals: Sunlight is visible through the top edge of blocks
Resolved
MCPE-218840
Visual glitch
Resolved
4 more links
I’ve found a much more severe example of the issue
[media]Create a world with seed 8566450905628078163
TP to -542 25 339
Set time to 10000