Orca Slicer and M5

I was playing around learning Orca Slicer. I would export the g-code to Ankermake slicer and pront. All was going well given other issues I'm having but this is weird. I successfully completed a print, went back to Orca to slice another model, imported it just as before (default settings mind you) and on the new print the nozzle was scraping the build plate. Even though my z offset was correct. I tried it with another model and got the same thing. Now my build plate looks like crap. I sliced the same model in Ankermake Slicer and had no problem. I didn't change a thing in Orca. Baffled.

I was playing around learning Orca Slicer. I would export the g-code to Ankermake slicer and pront. All was going well given other issues I'm having but this is weird. I successfully completed a print, went back to Orca to slice another model, imported it just as before (default settings mind you) and on the new print the nozzle was scraping the build plate. Even though my z offset was correct. I tried it with another model and got the same thing. Now my build plate looks like crap. I sliced the same model in Ankermake Slicer and had no problem. I didn't change a thing in Orca. Baffled.