GPX complains: warning G92 emulation unable to determine all coordinates

I am using GPX for my FlashForge Creator Pro. Invoking as follows: `gpx -m r1d "Tiny square 10mm.gcode”`I get the following message, twice:```(line 20) warning G92 emulation unable to determine all coordinates to set via x3g:140 set extended positioncurrent position defined as X:0.00 Y:0.00 Z:-5.00 A:0.00 B:0.00```By counting actual lines of code and ignoring comment lines, I get that line 20 is probably: G92 A0 B0 ; zero extrudersIf I press on and print anyway, the printer goes through its normal preparation process beautifully, but then, when the head should move to center to begin printing the object, it moves to the origin corner instead, and then of course prints things where they ought not to print.Is there a good fix for this?The entire beginning G code is as follows:; generated by PrusaSlicer 2.9.0 on 2025-04-01 at 13:17:56 UTC; external perimeters extrusion width = 0.45mm; perimeters extrusion width = 0.45mm; infill extrusion width = 0.45mm; solid infill extrusion width = 0.45mm; top infill extrusion width = 0.40mm; first layer extrusion width = 0.50mm;TYPE:CustomG90M83M127; **** Replicator 1 dual start.gcode ****M73 P0 ; enable build progressG162 X Y F3000 ; home XY maximumG161 Z F1200 ; home Z minimumG92 Z-5 ; set Z to -5G1 Z0 ; move Z to 0G161 Z F100 ; home Z slowlyM132 X Y Z A B ; recall home offsetsM135 T0 ; load right extruder offsetsG1 X150 Y-70 Z30 F9000 ; move to wait position right hand side of the tableG130 X20 Y20 Z20 A20 B20 ; lower stepper Vrefs while heatingM127M140 S60 T0M134 T0 ; stabilize bed temperature !!!M104 S210 T0M133 T0 ; stabilize right extruder temperature !!!G130 X127 Y127 Z40 A127 B127 ; default stepper VrefsG92 A0 B0 ; zero extrudersG1 Z0.4 ; position nozzleG1 X110 Y-70 E25 F300 ; purge nozzleG1 X120 Y-70 Z0.15 F1200 ; slow wipeG1 X110 Y-70 Z0.5 F1200 ; liftG92 A0 B0 ; zero extrudersM73 P1 ;@body (notify GPX body has started)G21 ; set units to millimetersG90 ; use absolute coordinatesM82 ; use absolute distances for extrusionG92 E0