Simples wont spawn

[explosion]
nickname = explosion_li_fighter
lifetime = 0.000000, 0.100000
process = disappear
debris_impulse = 110
debris_type = debris_solar_short, 0.600000
debris_type = debris_solar_long, 0.400000
num_child_pieces = 30
innards_debris_start_time = 0.000000
innards_debris_num = 30
innards_debris_radius = 70
innards_debris_object = simple_metal_debris15
effect = explosion_pirate_depot

[Simple]
nickname = simple_metal_debris15
DA_archetype = Solar\asteroids\models\debris_panel_f.3db
material_library = solar\ast_debris2.mat
Mass = 1000

everything is where is should be. but nothing being spawned.

anyone still out there that can help?