Yes very annoying too … since the UVs a perfectly fine in 3dsmax but once imported into UE4 it complains about overlap.
And the debug lighting doesn’t give a hint either… would be nice of Epic to add something into the staticmesh editors to see UV overlaps directly.
It only happens to the SM trees, also the new once from pack 2, the blueprint trees are all fine.
A bit of poking in the dark right now…
cheers
Willi Hammes
Managing Director
MAWI United GmbH