I keep losing my smoothing groups when I chamfer because you have to select 'smooth chamfer only' from the clunky drop down menu whenever I make a single chamfer. As far as I'm aware it is set to default everytime I chamfer an edge and I have to deselect it.
It's no fun to have to keep doing smoothing groups again and again because someone decided or didn't realise the one option no one would ever want is set to the default.