This is a very specific bug so I'm not sure if there is another report on this but the video contains everything.
In the one block holes, you can see through the blocks because they are on chunk borders (I assume that's why)
All the mined out chunks are slime chunks as well
Not much else to say, If you need more info let me know 🙂
MC-202711
Seeing through blocks when not in chunk
Resolved
Duplicate
0
Thank you for your report!
However, we are already tracking this issue, and this report is a Duplicate of MC-70850, which is a report that has not been resolved yet.
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