Its.very hard to see whats going on without the model in front of me but my immediate instinct would be to re-uv the problem faces - not least because itd take about 2 minutes.
Before that I would attempt to clean up as best as possible.
Try converting to mesh, back to poly (using the modifiers not the right click) reset xform etc
Before cleaning up the uvs.
Ive not noticed many of the traditional uv bugs in 2015 but tbh ive been doing most of my layouts in maya lately
Unless youve done something weird like weld all the uv verts to things they shouldnt be welded to I cant see why you have to redo everything.the layout doesnt look borked, it just looks like some of your seams got rearranged -possibly its trying to deal with weird welding (eg because you have welded overlapping uv shells together) .
Replies
Do a turn to poly and collapse. Then reapply the unwrapuvw and youll be seeing what's actually going on so you can clean up.
Chances are theres a bunch of crap lying around in the mesh that is upsetting it. A bit like mayas history
Before that I would attempt to clean up as best as possible.
Try converting to mesh, back to poly (using the modifiers not the right click) reset xform etc
Before cleaning up the uvs.
Ive not noticed many of the traditional uv bugs in 2015 but tbh ive been doing most of my layouts in maya lately