[Panama Red]

The "invisibily" problem can be fixed by changing the LOD distance values in the P-40F and P-40L per the following information by Birdman:

The engine and CF disappear because the LOD transition values are way too close. I opened the .msh files with notepad and found in Engine1 (all damage levels):
[LOD]
25
25
50
150

in CF (only D0):
[LOD]
25
125
150
200
200

I edited these values and now my engines don't disappear anymore:

for Engine1:
[LOD]
50
100
500
1200

for CF:
[LOD]
50
100
200
500
1200