Nozzle dragging across first layer

[3DPiper 0]

My nozzle is dragging across the first layer, sometimes pulling the filament up with it.

It happens whether I use a glass bed or a spring steel bed.

I have:

Combing mode set to 'all'

'Avoid Printed Parts When Traveling' is checked

'Avoid Supports When Traveling' is checked

'Travel/Avoid distance' is 1mm

'Z Hop When Retracted' is checked

'Z Hop Only Over Printed Parts' is checked

'Z Hop Height' is 1mm

 

The higher layers seem to print well, I just can't always get past this first or second layer. Pulling the print off is very annoying.

It is a Revo Hemera head, not sure if that matters.

I am thinking of putting an endoscope on it so I can see why this is happening.

Edited July 4 by 3DPiper