New Nebulae show their innards

[Xalrok]

Your new nebula might be overlapping with the old one, which can cause models inside to turn invisible (this used to happen in Minnesota at the corners of the system.)

If that's not the case though, you could open up the system file and the nebula file in a text editor and post the code for the zone and the nebula like I've done here. Then I might be able to track down the problem faster by looking at it myself and tell you what was causing it.

Spoiler

Code:

[zone]
nickname = Zone_GA03_nouvionnebula_01
ids_name = 506346
pos = 50000, 0, 40000
rotate = 0, 32, 0
shape = ELLIPSOID
size = 32000, 12000, 21000
property_flags = 32768
property_fog_color = 120, 90, 120
damage = 0
visit = 32
spacedust = attractdust
spacedust_maxparticles = 50
interference = 0.000000
ids_info = 506347
comment = Nouvion
sort = 20
toughness = 6
density = 5
repop_time = 15
max_battle_size = 4
pop_type = nonlootable_ast_field
relief_time = 35
encounter = area_scavenger, 12, 0.3
faction = fc_brigands_grp, 0.6
faction = fc_maquis_grp, 0.4
encounter = area_assault, 12, 0.1
faction = ga_n_grp, 0.4
faction = ga_p_grp, 0.6
music = zone_nebula_barrier

Spoiler

Code:

[TexturePanels]
file = solar\nebula\nomad.ini
file = solar\nebula\generic_shapes.ini
[Fog]
fog_enabled = 1
near = 0
distance = 2000
color = 39, 12, 3
[Exterior]
shape = nomad_exterior1
shape = nomad_exterior2
shape = nomad_exterior3
shape = nomad_exterior4
shape_weights = 1, 1, 1, 1
fill_shape = nebula_circle2
plane_slices = 5
bit_radius = 8000
bit_radius_random_variation = 0.200000
min_bits = 4
max_bits = 8
move_bit_percent = 0.750000
equator_bias = 0.500000
color = 225, 73, 0
[NebulaLight]
ambient = 39, 12, 3
sun_burnthrough_intensity = 0.250000
sun_burnthrough_scaler = 0.750000
[Clouds]
max_distance = 800
puff_count = 20
puff_radius = 450
puff_colora = 183, 10, 0
puff_colorb = 255, 83, 0
puff_max_alpha = 0.500000
puff_shape = nomad_cloud1
puff_shape = nomad_cloud2
puff_shape = nomad_cloud4
puff_shape = nomad_cloud3
puff_weights = 1, 2, 3, 4
puff_drift = 8.000000
near_fade_distance = 300, 800
lightning_intensity = 0.000000
lightning_color = 92, 64, 92
lightning_gap = 20.000000
lightning_duration = 0.500000
[DynamicLightning]
gap = 0.200000
duration = 0.300000
color = 240, 170, 130
ambient_intensity = 0
intensity_increase = 1
[BackgroundLightning]
duration = 0
gap = 2
color = 252, 255, 115