When you hold a glass block or pane on your hand, or when you drop it down as an item, it can hide maps on frames, entities like mobs and other items or non full blocks like beds.
MCPE-77189
Glass as an item makes entities invisible
Resolved
Duplicate
0
Thank you for your report!
We're actually already tracking this issue at MCPE-32450 and MCPE-55631, so I will resolve and link this ticket as a duplicate.
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