Printing out two objects with different color results in failure  

Printing out two objects with different color results in failure

I have molar tooth and nerves of it. I have extracted them from Cone Beam Tomography and other softwares.

I have scaled up these objects.

I have intented to print out tooth as transparent and nerve as red with pla.

I have used lightening infill with %15 to hold the nerve in the air(seems to be in the air).

My Gcode is;

G21 ; metric values
G90 ; absolute positioning
M82 ; set extruder to absolute mode
;P2PP PALETTE3_PRO
;P2PP PALETTE3_PRO
;P2PP PRINTERPROFILE=12345678901234567890123456789012

;P2PP SPLICEOFFSET=40

;P2PP MINSTARTSPLICE=130
;P2PP MINSPLICE=90

;P2PP EXTRAENDFILAMENT=150
;P2PP LINEARPINGLENGTH=350

;P2PP MATERIAL_DEFAULT_1_2_1
;P2PP MATERIAL_PLA_PLA_2_1_2

;P2PP ABSOLUTEEXTRUDER

;P2PP SIDEWIPELOC=X254 
;P2PP SIDEWIPEMINY=45 
;P2PP SIDEWIPEMAXY=195 
;P2PP SIDEWIPECORRECTION=1.0 

;set !P2PP SIDEWIPELOC=X254 
;set !P2PP SIDEWIPEMINY=45 
;set SIDEWIPEMAXY to the same value as SIDEWIPEMINY 
;set !P2PP SIDEWIPEMAXY=45 
;set WIPEFEEDRATE is required to override default value!! 
;set !P2PP WIPEFEEDRATE=200  

;P2PP PURGETOWERDELTA=0 

;P2PP FULLPURGEREDUCTION 
;P2PP WIPEFEEDRATE=3000
;P2PP AUTOADDPURGE 
 

M140 S[first_layer_bed_temperature] ; set bed temp
G28 X0 Y0 ; home X and Y
G28 Z0 ; home Z
G1 Z30 F{machine_max_feedrate_z[0]*60} ; move Z a bit down to not blow on the bed edge while heating
G1 X10 F3900 ; let some space on x to prevent the filament cooling exhaust from beeing blocked by the servo motor
M190 S[first_layer_bed_temperature] ; wait for bed temp
M104 S[first_layer_temperature] ; set extruder temp
M106 S80 ; turn on fan to prevent air nozzle melt while heating up
M109 S[first_layer_temperature] ; wait for extruder temp
M107 ; start with the fan off
G28 X0 ; goto X home again
G92 E0 ; zero the extruded length
G1 Z0.2 F360 ; move plattform upwards
; extrude material next to the plattform (comment or remove following lines to disable)
G1 F180 E20 ; extrude some material next to the plattform
G92 E0 ; zero the extruded length
G1 E-[retract_length] F{retract_speed[0]*60} ; do a filament retract
G92 E0 ; zero the extruded length again
G1 X5 F3900 ; move sideways to get rid of that string
G1 E[retract_length] F{retract_speed[0]*60} ; do a filament deretract with retract parameters
G92 E0 ; zero the extruded length again
; draw intro line (comment or remove following lines to disable)
G1 X30 E5 F700 ; draw intro line
G92 E0 ; zero the extruded length
G1 E-[retract_length] F{retract_speed[0]*60} ; do a filament retract
G1 X40 Z2.0 ; move away from the introline
G92 E0 ; zero the extruded length again
G1 E[retract_length] F{retract_speed[0]*60} ; do a filament deretract with retract parameters
; end of intro line code
M117 Printing...
G5

 What I got from printer is;

My question is:

Why the molar tooth and infill is colored even if I selected the extruder 1 which is transparent PLA for molar tooth?

Note;

I have palette pro 3 and anycubic 4max pro 2 as hardware and p2pp and prusaslicer as software.