In Map NBT, the "dimension" tag is of type TAG_Byte, but in Player NBT, the "Dimension" tag is of type TAG_Int. This issue has existed since maps were first added.
MC-70324
Inconsistent type for Dimension tag between Map NBT and Player NBT
Resolved
Incomplete
0
(Unassigned)
Unconfirmed
Minecraft 1.7.10, Minecraft 14w34d, Minecraft 1.8-pre3
Retrieved
Is this still an issue in the current Minecraft Snapshot 15w46a or later? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.