When I select all uv's in one Quadrant, and try to copy uv's to new UV set. I keep getting "error while parsing arguments"

I also noticed, that there were a lot of uv sets. these perhaps where created while doing projections.

Someone at another maya forum had given me a script to delete all sets and keeping map 1, but I wasn't able to get it to clean up and delete all these sets when I executed script. As a result, I still get same "error while parsing arguments. I also tried deleting history. Now I feel like I hit a brick wall :headbang:
Has anyone had a similar problem before? or any detour or approach to finally do snapshots of these two sets?
I would greatly appreciate any clues.