I noticed, that many UV features are not working properly, or it's user error.
I have a piece of geometry, which is a perfect candidate to rectify, but Houdini doesn't rectify it. Also, If I try to use the align vertices along with U or V direction, it wouldn't work. Did anybody experience the same? Or am I missing something?
I've had the same problem, it was very frustrating. The uv layout seems to be able to rectify some shapes and not others even though they had the same grid topology.