I was wondering if my printer had something or my filament was contaminated, but after the second print where filament was missing at the exact same place, I looked closely at the gcode and ... tadaaaa !
The file is from the prusa i3 rework version, the extruder with integrated supports, sliced with a 0.25mm layer and a 20 pcent honeycomb infill.
Look at the gcode, you will see 2 missing layers
and there is more....
Sico