The blip that indicates where you are on the map doesn't work unless you are in the map area that you spawned in. The 4/4 map that I have shows where I am until I've moved to the out of bounds portion of it, then it doesn't show my blip on the second map I made for the next area. It also make the blip show up in the center of the map with wrong z-axis location, but the same x-axis location.
Thank you for your report!
We're actually already tracking this issue at MCPE-84830, so I will resolve and link this ticket as a duplicate.
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