This one completely ignores reflectance. Sometimes Mandelbulber crashes after loading it. I left the file paths in, although they are not in use.

# Mandelbulber settings file

# version 2.11

# only modified parameters

[main_parameters]

ambient_occlusion 2;

ambient_occlusion_enabled true;

ambient_occlusion_quality 5;

antialiasing_enabled true;

antialiasing_size 3;

background_rotation -49,6 65 -109,87;

bailout 4096;

camera 0,008112028925547812 0,03173938516055841 -0,479182271608214;

camera_distance_to_target 0,4000000000000002;

camera_rotation -5,950759715609089 -1,1891439250041 90;

camera_top 0,9946113603847808 -0,1036737275954501 6,121713073667159e-17;

contrast 1,2;

DE_factor 0,5;

detail_level 1,25;

file_background C:Users aurusmandelbulber exturesDH211SN.jpg;

file_lightmap C:Users aurusmandelbulber exturesDH211SN.jpg;

flight_last_to_render 0;

fog_color_1 0000 1600 1900;

fog_color_2 4c00 7800 7e00;

fog_color_3 d900 f100 f400;

formula_1 8;

formula_2 91;

formula_iterations_1 16;

formula_material_id 2;

formula_stop_iteration_1 350;

formula_stop_iteration_2 350;

gamma 1,3;

glow_color_1 0000 0f00 1200;

glow_color_2 6a00 7400 7e00;

glow_intensity 1,62181;

hdr true;

hybrid_fractal_enable true;

image_height 960;

image_width 1280;

julia_c -20 0 0;

julia_mode true;

keyframe_last_to_render 0;

limit_max 0,5 15 15;

limit_min -15 -1 -15;

limits_enabled true;

main_light_alpha -75,95999999999999;

main_light_beta 69,44;

mat1_coloring_palette_offset 8,76;

mat1_coloring_speed 5;

mat1_fractal_coloring_sphere_radius 0,01;

mat1_is_defined true;

mat1_specular 1,5;

mat1_specular_width 0,3;

mat1_surface_color_palette 4f1f09 6d3a1d dda067 7a9e84 304e4c 153135 304e4c 7b9f85 dda067 6c391c;

mat2_is_defined true;

mat2_reflectance 0,8;

mat2_specular 3;

mat2_specular_width 0,2;

mat2_surface_color 2d00 2d00 2d00;

mat2_use_colors_from_palette false;

N 350;

raytraced_reflections true;

reflections_max 3;

repeat_from 2;

shadows_cone_angle 5;

smoothness 3;

target 0,04957258882781527 0,4294982469584309 -0,4874834663325667;

use_default_bailout false;

volumetric_fog_colour_1_distance 0,2;

volumetric_fog_colour_2_distance 0,4;

volumetric_fog_distance_factor 0,3;

volumetric_fog_enabled true;

[fractal_1]

IFS_rotation_enabled true;

mandelbox_color 0,03 0,05 0;

mandelbox_color_Sp1 0,1;

mandelbox_color_Sp2 0,5;

mandelbox_folding_limit 0,5;

mandelbox_folding_min_radius 0;

mandelbox_folding_value 1;

mandelbox_scale 1;

[fractal_2]

IFS_abs_x true;

IFS_abs_y true;

IFS_abs_z true;

IFS_direction_5 1 -1 0;

IFS_direction_6 1 0 -1;

IFS_direction_7 0 1 -1;

IFS_distance_5 0,5;

IFS_distance_6 0,5;

IFS_distance_7 0,5;

IFS_enabled_5 true;

IFS_enabled_6 true;

IFS_enabled_7 true;

IFS_rotation 45 0 0;

IFS_rotation_enabled true;

IFS_scale 3;

mandelbox_rotation_main 12,5 0 0;

mandelbox_scale -1;

transf_addition_constant 0,5 0,5 0,5;

transf_addition_constantA_000 0,5 0 0;

transf_constant_multiplier_111 0,5000000000000001 0,5000000000000001 0,5000000000000001;

transf_function_enabledz_false true;

transf_int_A 5;

transf_int_B 20;

transf_offset_0005 0,1;

transf_offsetA_0 0,1;

transf_offsetB_0 0,9999999999999999;

transf_rotation 26,57 45 -69,2;

transf_stop_iterations_P1 5;

transf_stop_iterations_S 10;

[fractal_3]

IFS_rotation_enabled true;

[fractal_4]

IFS_rotation_enabled true;

Theese reproducible error messages, I get with this particular parameter.

# Mandelbulber settings file

# version 2.11

# only modified parameters

[main_parameters]

ambient_occlusion_enabled true;

ambient_occlusion_quality 5;

bailout 1024;

camera -1,459508749047711 -3,496355658690785 -0,423733652939966;

camera_distance_to_target 1,413734197616577;

camera_rotation 109,9101763269014 -70,93418056338591 109,8084656622376;

camera_top -0,01925350009803546 0,9936678512884969 -0,1106955466569293;

DE_factor 0,5312652587890625;

detail_level 2;

dont_add_c_constant_1 true;

flight_last_to_render 0;

formula_1 8;

formula_2 8;

formula_iterations_1 20;

formula_iterations_2 100;

formula_iterations_3 100;

formula_iterations_4 100;

hybrid_fractal_enable true;

image_height 768;

image_width 1024;

julia_c 0 12 0;

julia_mode true;

keyframe_last_to_render 0;

limit_max 10 10 0;

mat1_is_defined true;

mat1_reflectance 0,5;

raytraced_reflections true;

reflections_max 2;

smoothness 5;

target -1,89370785436383 -3,653620770077761 -1,759915977023663;

use_default_bailout false;

volumetric_fog_colour_1_distance 0,3;

volumetric_fog_colour_2_distance 0,5;

volumetric_fog_distance_factor 0,7;

volumetric_fog_enabled true;

[fractal_1]

mandelbox_folding_min_radius 0;

mandelbox_folding_value 1,99;

mandelbox_scale -1;

[fractal_2]

mandelbox_folding_min_radius 0;

mandelbox_folding_value 4;

[fractal_4]

transf_addition_constant 0 12 0;

Some others with reflections work.