I'm having this problem since the 1.11 update in Bedrock edition. The map data is there but it shows up in the Ender Chest as "Unknown Map." One I take it out and view it, the name reverts to the correct name.
I'm having this problem since the 1.11 update in Bedrock edition. The map data is there but it shows up in the Ender Chest as "Unknown Map." One I take it out and view it, the name reverts to the correct name.