the map has a bug and it is that you cannot see you put it in your hand and it is not seen try putting it in a frame and it did not help either I hope they solve it

I have the same issue, the map is invisible in the hand. 1.16.0.60

Thank you for your report!
We're actually already tracking this issue at MCPE-76166, so I will resolve and link this ticket as a duplicate.

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