Transfer uv maps operation error or Mesh not identical? here are two sets of mesh which looks identical, vert edge face count and even the vert index order are the same.
when use “transfer uv maps” from 2 to 1, 1 as active object. mesh 2’s uv is messed up (UV vert split up). vice versa.
if duplicate them and use transfer uv maps operator on their respective duplicates, ( after altering their UVs a little bit) the results work as expected.
how to make sure mesh 1 and 2 are identical? or in this case it is operator transfer uv maps error?
here is the file(http://uploadmb.com/dw.php?id=1604139792&amp;/UV map transfer.blend)
and screen grab:
a work around is to snap every vert from mesh A to mesh B via vert index and use data transfer by close proxy.
please see this post on how to snap it via vert index: snap objects of same topology together by vertex index
special thanks to @lemon for comment here and provide solution in above post.