Image is pretty self explanatory. I don’t know why blender doesn’t make it easier to avoid this issue.
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The questing is: how do you get there…? If this is one half of a model then the uv where projected from different views ? How should blender know…?
If you just wann re-mirror both set the 2D cursor to the middle and pivot point to 2D cursor, scale -1 on x
Maybe …MagicUV addon: UV Editor → UV → Select UV → Flipped
ok, flipping via the cursor is a good first step. That doesn’t recreate the original, but that’s probably not possible.
Is there an easy way to separate overlapping vertices in the UV map? Currently I have to select one half of the mesh… oh I could select the entire one side of the mesh and move everything by 1 whole UV space to get things seperated initially. UVPackmaster2 has separate overlapping islands, but these overlapping vertices are considered a single island.
Edit: Also, “select side of active” is an easy way to select half the mesh after selecting a middle vertex: https://blender.stackexchange.com/questions/46520/how-do-i-accurately-select-half-of-a-symmetrical-mesh
MagicUV also has a select overlay function…