Prints often fail at this Z height

Greetings, I've had about 10 different small-parts prints fail at around the pictured height. Mainsail says 40 -50 Z height but i forget how much the bed drops when you cancel a job. Nozzle usually hits the print or supports and the print fails. What could this be, I've meshed and re-meshed, currently at around .188 bed range on my Vcore 400 , belts look good and resonance is good. On lower layers the nozzle often scrapes prints when traveling to the next object on the bed. Using RatRig Toolhead Beta v2 and Orca. Edit: Orca slicer default "Z hop when retracting is 0" does anyone else have this issue with RR Toolhead Beta v2 and Orca at 0 Retraction Z hop?