Hiding parts from the part list in LPUB

[Jetro de Château]

I've come up with a strange issue. I'm trying to show a simple M-Motor instead of motor+cable assembly file and for some reason, even though the surrounding parts are all grey, the motor turns up black. Any idea what may be going on?

Code:

0 !LPUB MULTI_STEP BEGIN
1 71 70 -46 -80 -1 0 0 0 1 0 0 0 -1 4519.dat
1 71 70 -46 -80 0 0 1 0 1 0 -1 0 0 3713.dat
0 !LPUB PLI BEGIN SUB 58120.dat 0
1 71 60 -66 -80 0 0 -1 0 1 0 1 0 0 pf_motor_m.ldr
0 !LPUB PLI END