I'm printing a single model. Sorry for my terse post it was late and I had just lost a 7 hr print. I will post the factory file tonight. The nozzle slams right into a column on the single model and breaks it off. Why does layer change fast travel happen before incrementing the z axis to the next layer? Really dumb.
Also what I would like to see is an option for fast travels to avoid any part of the model. Not just geometry but also support material.
Also in an unrelated question, why does z hop have to be tied to retraction? Why can't we have a z hop on any travel moves, preferably with an option to add a minimum travel distance for hop to occur? Attaching it to retraction is exactly what you don't want since that will lead to stringing.