When I leave a chunk for a bit and come back to it, the light glitch weirdly, and it becomes dark in some areas. However, it does happen when leaving the water too, and to fix that light glitch I have to break a block in that area, or I have to place a torch or the new lantern.Β
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Thank you for your report!
We're actually already tracking this issue at MCPE-39439, so we will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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Nice, good job on the hard work mojangπ