It is ridiculously buggy ...
Thank's a lot for your detailed answer djohnq I'm a long time Ableton user but started out with logic.
Logic has something special and I love working with. But it has to much buggy stuff ... That distructive midi slice, among other serious PDC and automation issues ..
So, going back to Ableton for now. Hoping logic will one day be as solid as other DAW in the market right now.