I don't have a picture for this, but whenever I Mine blocks in general sometimes the blocks don't break, and become not visible to me. Thus I take damage as if i'm suffocating within something. not sure if anyone else is having this issue but it's been happening to me allot.
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Thank you for your report!
We're actually already tracking this issue at MCPE-65291, so I 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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