LPub3D 2.0.5 - Can't get fading to work with BUFEXCHG

[David]

Hi!
First thank you for your work, LPub3D is an amazing soft, even if it is sometimes tricky to get the results we expect!!
And speaking about that, despite my many tries, and the very useful example I found in this thread, I cannot get the result I expect...
On the image attached, I would like to have the submodel described in the callout (viper_left_wing_subassy01) not faded...
Here is the piece of LPub commands I actually use:

Code:

0 !LPUB MULTI_STEP BEGIN
0 !LPUB MULTI_STEP PLACEMENT CENTER PAGE INSIDE -0.25 0
0 ROTSTEP 0 180 0 REL
1 15 13.400700 -139.521100 -29.464200 0.000000 1.000000 0.000000 -0.801953 0.000000 0.597388 0.597388 0.000000 0.801953 40490.dat
0 STEP
0 !LPUB ASSEM PLACEMENT LOCAL LEFT PAGE INSIDE 0.2 0
0 !LPUB PLI CONSTRAIN LOCAL HEIGHT 1.08
0 BUFEXCHG A STORE
0 !LPUB CALLOUT BEGIN
1 16 -12.753480 -75.206180 -16.509370 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 viper_left_wing_subassy01
0 !LPUB CALLOUT POINTER LEFT 0.911 0.933 0.616 0
0 !LPUB CALLOUT PLACEMENT RIGHT PAGE INSIDE -0.05 0.1
0 !LPUB CALLOUT END
0 BUFEXCHG B STORE
0 BUFEXCHG A RETRIEVE
0 !LPUB PART BEGIN IGN
0 GHOST 1 16 -82.753480 -75.206180 -16.509370 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 viper_left_wing_subassy01
0 !LPUB PART END
0 STEP
0 !LPUB MULTI_STEP END

If anyone can help?? or point to an example which illustrated this?

Many Thanks!

David