Simplify3D User Forum

Hello,
I noticed when I start a new print the filament retracts, I checked the "starting script" it is not there:
start.gcode = ;Sliced at: {day} {date} {time}
;Basic settings: Layer height: {layer_height} Walls: {wall_thickness} Fill: {fill_density}
G28
G90 ;absolute positioning
G21 ;metric values
M107 ;start with the fan off
G1 Z15.0 F{travel_speed} ;move the platform down 15mm
G92 E0 ;zero the extruded length
G1 F200 E3 ;extrude 3mm of feed stock
G92 E0 ;zero the extruded length again
G1 F{travel_speed}
M42 P6 S255
It is showing up on the gcode:
start.gcode = ;Sliced at: {day} {date} {time}
;Basic settings: Layer height: {layer_height} Walls: {wall_thickness} Fill: {fill_density}
G28
G90 ;absolute positioning
G21 ;metric values
M107 ;start with the fan off
G1 Z15.0 F{travel_speed} ;move the platform down 15mm
G92 E0 ;zero the extruded length
G1 F200 E3 ;extrude 3mm of feed stock
G92 E0 ;zero the extruded length again
G1 F{travel_speed}
M42 P6 S255
G92 E0
G1 E-5.5000 F3600
G1 Z0.595 F1002
; layer 1, Z = 0.195

I don't know where it is coming from, it does not happen every time, when that happens I noticed the print is not solid because sometimes the plastic that comes out of the nozzle is not a solid line, for example 10 layers were printed fine with solid lines then the next layer starts with a 200mm line, this line starts with dots (very little plastic comes out) and then 100mm later the line starts to become solid.
My printer is Airwolf3D XDR and the nozzle is .35mm.
Initially I was looking for problems in the printer, clogged nozzle, mouse bites in the filament, the feeding tube that I rule them out because I replace them.
I used to get very good prints before, and I tweaked the settings to get some extra improvement, my settings now are:
Retraction Distance 6.00mm
Extra Restart Distance 0 mm
Retraction Vertical lift 0.4mm
Retraction Speed 60mm/S
Coasting Distance 0.80mm

im not sure if this will cure it but in the gcode tab, click the relative extrusion distances box. i have seen your issue before. its happened to me a small handful of times over the past 2 years. there is also an odd bug with the wipe feature and wipe while retract option where you get super big retractions. changing to relative retraction fixes all that.