Pour le corps qui disparait voici le contenu de mon fichier ex_config dans le skin wec.
c'est OK pour moi
[INCLUDE: common/materials_glass.ini]
[INCLUDE: common/materials_carpaint.ini]
[INCLUDE: common/materials_interior.ini]
[INCLUDE: common/selflighting.ini]
[MODEL_REPLACEMENT_...]
FILE=dallas_vsr.kn5
HIDE=EXT_BODY, EXT_BODY2, EXT_BODY_IMSAPANEL_L, EXT_BODY_IMSAPANEL_R
INSERT=endubody.kn5
INSERT_AFTER=COCKPIT_HR
[MODEL_REPLACEMENT_...]
FILE=dallas_vsr.kn5
HIDE=EXT_GLASS_SPARE_LIGHTS_IMSA, EXT_IMSABUCKET_R, EXT_IMSALENS_R, EXT_IMSALED_R, EXT_SPARE_LIGHTS_IMSA_03, EXT_IMSALENS_L, EXT_IMSALED_L, EXT_IMSABUCKET_L
INSERT=endurance.kn5
INSERT_AFTER=COCKPIT_HR
[DRIVER3D_MODEL]
NAME=rh_bell_helmet_driver_19
POSITION=0.0,0.0,0.0
[DRIVER3D_HIDE_OBJECT_0]
NAME=DRIVER:HELMET
[DRIVER3D_HIDE_OBJECT_1]
NAME=DRIVER:GEO_Driver_FACE
[INCLUDE: common/materials_carpaint.ini]
CarPaintMaterial = EXT_BODY2
[Material_CarPaint_Solid]
FresnelMax = 0.6
FresnelC = 0.03
ColoredSpecular = 0.95
ApplyMatteFix = 0
ClearCoatThickness = 0.15
AmbientSpecularEXP = 3
AmbientSpecular = 1.0
SpecularBase = 1, 100
SpecularSun = 2, 200
BrightnessAdjustment = 0.7