lighting bugging out

I'm sure it's related to the single player lighting bug. But since I play on a realm affected  I will add that we are having the same problem outside (so far) of the spawn chunks.  See link for recent video after the 1.14.1 update. https://www.youtube.com/watch?v=2jNm5P-MMKU

If you go back further in his earlier videos, you can see when it first started. If it would help: we can add a Mojang tech to the realm or supply a world down load. I'm pretty sure David the owner has already emptied the cache and the problem remains.

Check how it looks without Smooth Lighting enabled.