While i was building in singleplayer, i noticed that after a while weird shadows started appearing, without anything above them to cast shadows
This all happened after i made a roof on a tower
After that, my character went to full darkness above that y coordinate
When i move away from the tower, it then pops back into light
When i exit from the world and relog into it, it first fixed the issue but after that it doesn't
Thank you for your report!
We're actually already tracking this issue at MC-148037, so we will resolve and link this ticket as a duplicate.
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