Bedrock on PC. In a shared family Realm.

black/dark patches in random areas, shaded or exposed mid day. even when a torch is right next to it. The lighting adjusts if I add a light source, but the lighting even then is still not correct.

I took screenshots, but am new to PC and cant seem to find the file. 

Anyone out there who can get a screenshot and comment please? I know this isnt isolated, and its an issue we have seen before in older versions.