SM5.0.9 crashes when I try to open any song in edit mode

As per the title. I've tried uninstalling and reinstalling, running as administrator, and using both the Simply Love theme and the default. No matter what song I try to edit, I get a crash after confirming which difficulty and trying to enter the actual editing screen. Crashinfo below. PC is about 3 years old so nothing should be too outdated to run SM. My stepfiles don't have anything unusual in them; they're just plain files I brought over from 3.9. Any insight is appreciated.

StepMania5.0.9 crash report (build 7, 20150620 @ 02:40:39 FLE Daylight Time)
--------------------------------------

Crash reason: Access Violation

Thread: Main thread
RageTextureManager.cpp:145 RageTextureManager::LoadTexture(/Themes/_fallback/Fonts/frutiger 24px [polish-stroke] 8x2.png).
BitmapText.cpp:208 BitmapText::LoadFromFont(/Themes/Simply-Love-SM5-master/Fonts/_miso.ini)
FontManager.cpp:40 FontManager::LoadFont(/Themes/Simply-Love-SM5-master/Fonts/_miso.ini).
BitmapText.cpp:208 BitmapText::LoadFromFont(/Themes/_fallback/Fonts/frutiger 24px.ini)
FontManager.cpp:40 FontManager::LoadFont(/Themes/_fallback/Fonts/frutiger 24px.ini).
Thread: Decode thread
RageSoundDriver_Generic_Software.cpp:204 Processing the sound while buffers are available.
RageSoundDriver_Generic_Software.cpp:204 Processing the sound while buffers are available.
RageSoundDriver_Generic_Software.cpp:204 Processing the sound while buffers are available.
RageSoundDriver_Generic_Software.cpp:204 Processing the sound while buffers are available.
RageSoundDriver_Generic_Software.cpp:204 Processing the sound while buffers are available.
Thread: Mixer thread
Thread: Music thread
Thread: Worker thread (MemoryCardWorker)
Thread: Worker thread (/@mc1int/)
Thread: Worker thread (/@mc2int/)
Thread: DirectInput thread
InputHandler_DirectInput.cpp:766
InputHandler_DirectInput.cpp:742
InputHandler_DirectInput.cpp:761
InputHandler_DirectInput.cpp:766
InputHandler_DirectInput.cpp:742

debug resource file 'C:\Games\StepMania 5\Program\StepMania.vdi': CreateFile failed (The system cannot find the file specified.).

Static log:
StepMania5.0.9
Compiled 20150620 @ 02:40:39 FLE Daylight Time (build 7)
Log starting 2015-08-28 14:51:40
Loading window: win32
Windows 6.1 (Win7) build 7601 [Service Pack 1]
Memory: 4095mb total, 4095mb swap (4095mb swap avail)
Video driver: NVIDIA GeForce GT 545 [NVIDIA]
10.18.13.5560, 8-6-2015 [pci\ven_10de&dev_1243&subsys_85081043]
Sound device 0: Speakers (Realtek High Definiti, 6.1, MID 1, PID 100
Sound device 1: Realtek Digital Output (Realtek, 6.1, MID 1, PID 100
DirectSound Driver: Primary Sound Driver
DirectSound Driver: Speakers (Realtek High Definition Audio) {0.0.0.00000000}.{81568751-24bc-4dcc-9a44-7b81c9aa1c58}
DirectSound Driver: Realtek Digital Output (Realtek High Definition Audio) {0.0.0.00000000}.{2c8fd9e3-5fb8-4c17-be9f-ef4a157cea15}
DirectSound sample rates: 100..200000 (continuous)
Software mixing at 44100 hz
Sound driver: DirectSound-sw
Lights driver: SystemMessage
Lights driver: Export
Video renderers: 'opengl,d3d'
Mode: ICD 32 (888) 24 depth 64 accum
Paletted textures disabled: GL_EXT_paletted_texture missing.
OGL Vendor: NVIDIA Corporation
OGL Renderer: GeForce GT 545/PCIe/SSE2
OGL Version: 4.5.0 NVIDIA 355.60
OGL Max texture size: 16384
OGL Texture units: 4
GLU Version: 1.2.2.0 Microsoft Corporation
OGL Extensions:
GL_AMD_multi_draw_indirect
GL_ARB: ES2_compatibility, ES3_1_compatibility, ES3_compatibility, arrays_of_arrays, base_instance,
blend_func_extended, buffer_storage, clear_buffer_object, clear_texture, clip_control, color_buffer_float,
compatibility, compressed_texture_pixel_storage, compute_shader, compute_variable_group_size,
conditional_render_inverted, conservative_depth, copy_buffer, copy_image, cull_distance, debug_output,
depth_buffer_float, depth_clamp, depth_texture, derivative_control, direct_state_access, draw_buffers,
draw_buffers_blend, draw_elements_base_vertex, draw_indirect, draw_instanced, enhanced_layouts,
explicit_attrib_location, explicit_uniform_location, fragment_coord_conventions, fragment_layer_viewport,
fragment_program, fragment_program_shadow, fragment_shader, framebuffer_no_attachments, framebuffer_object,
framebuffer_sRGB, geometry_shader4, get_program_binary, get_texture_sub_image, gpu_shader5, gpu_shader_fp64,
half_float_pixel, half_float_vertex, imaging, indirect_parameters, instanced_arrays, internalformat_query,
internalformat_query2, invalidate_subdata, map_buffer_alignment, map_buffer_range, multi_bind,
multi_draw_indirect, multisample, multitexture, occlusion_query, occlusion_query2, pipeline_statistics_query,
pixel_buffer_object, point_parameters, point_sprite, program_interface_query, provoking_vertex,
query_buffer_object, robust_buffer_access_behavior, robustness, sample_shading, sampler_objects,
seamless_cube_map, separate_shader_objects, shader_atomic_counters, shader_bit_encoding,
shader_draw_parameters, shader_group_vote, shader_image_load_store, shader_image_size, shader_objects,
shader_precision, shader_storage_buffer_object, shader_subroutine, shader_texture_image_samples,
shader_texture_lod, shading_language_100, shading_language_420pack, shading_language_include,
shading_language_packing, shadow, sparse_buffer, sparse_texture, stencil_texturing, sync, tessellation_shader,
texture_barrier, texture_border_clamp, texture_buffer_object, texture_buffer_object_rgb32,
texture_buffer_range, texture_compression, texture_compression_bptc, texture_compression_rgtc,
texture_cube_map, texture_cube_map_array, texture_env_add, texture_env_combine, texture_env_crossbar,
texture_env_dot3, texture_float, texture_gather, texture_mirror_clamp_to_edge, texture_mirrored_repeat,
texture_multisample, texture_non_power_of_two, texture_query_levels, texture_query_lod, texture_rectangle,
texture_rg, texture_rgb10_a2ui, texture_stencil8, texture_storage, texture_storage_multisample,
texture_swizzle, texture_view, timer_query, transform_feedback2, transform_feedback3,
transform_feedback_instanced, transform_feedback_overflow_query, transpose_matrix, uniform_buffer_object,
vertex_array_bgra, vertex_array_object, vertex_attrib_64bit, vertex_attrib_binding, vertex_buffer_object,
vertex_program, vertex_shader, vertex_type_10f_11f_11f_rev, vertex_type_2_10_10_10_rev, viewport_array,
window_pos
GL_ATI: draw_buffers, texture_float, texture_mirror_once
GL_EXTX_framebuffer_mixed_formats
GL_EXT: Cg_shader, abgr, bgra, bindable_uniform, blend_color, blend_equation_separate, blend_func_separate,
blend_minmax, blend_subtract, compiled_vertex_array, depth_bounds_test, direct_state_access, draw_buffers2,
draw_instanced, draw_range_elements, fog_coord, framebuffer_blit, framebuffer_multisample,
framebuffer_multisample_blit_scaled, framebuffer_object, framebuffer_sRGB, geometry_shader4,
gpu_program_parameters, gpu_shader4, import_sync_object, multi_draw_arrays, packed_depth_stencil,
packed_float, packed_pixels, pixel_buffer_object, point_parameters, polygon_offset_clamp, provoking_vertex,
rescale_normal, secondary_color, separate_shader_objects, separate_specular_color, shader_image_load_store,
shader_integer_mix, shadow_funcs, stencil_two_side, stencil_wrap, texture3D, texture_array,
texture_buffer_object, texture_compression_dxt1, texture_compression_latc, texture_compression_rgtc,
texture_compression_s3tc, texture_cube_map, texture_edge_clamp, texture_env_add, texture_env_combine,
texture_env_dot3, texture_filter_anisotropic, texture_integer, texture_lod, texture_lod_bias,
texture_mirror_clamp, texture_object, texture_sRGB, texture_sRGB_decode, texture_shared_exponent,
texture_storage, texture_swizzle, timer_query, transform_feedback2, vertex_array, vertex_array_bgra,
vertex_attrib_64bit
GL_IBM: rasterpos_clip, texture_mirrored_repeat
GL_KHR: blend_equation_advanced, context_flush_control, debug, robust_buffer_access_behavior, robustness
GL_KTX_buffer_region
GL_NVX: conditional_render, gpu_memory_info
GL_NV: ES1_1_compatibility, ES3_1_compatibility, bindless_multi_draw_indirect,
bindless_multi_draw_indirect_count, blend_equation_advanced, blend_square, command_list, compute_program5,
conditional_render, copy_depth_to_color, copy_image, depth_buffer_float, depth_clamp, draw_texture,
explicit_multisample, fence, float_buffer, fog_distance, fragment_program, fragment_program2,
fragment_program_option, framebuffer_multisample_coverage, geometry_shader4, gpu_program4, gpu_program4_1,
gpu_program5, gpu_program5_mem_extended, gpu_program_fp64, gpu_shader5, half_float,
internalformat_sample_query, light_max_exponent, multisample_coverage, multisample_filter_hint,
occlusion_query, packed_depth_stencil, parameter_buffer_object, parameter_buffer_object2, path_rendering,
pixel_data_range, point_sprite, primitive_restart, register_combiners, register_combiners2,
shader_atomic_counters, shader_atomic_float, shader_buffer_load, shader_storage_buffer_object,
shader_thread_group, texgen_reflection, texture_barrier, texture_compression_vtc, texture_env_combine4,
texture_multisample, texture_rectangle, texture_shader, texture_shader2, texture_shader3, transform_feedback,
transform_feedback2, uniform_buffer_unified_memory, vertex_array_range, vertex_array_range2,
vertex_attrib_integer_64bit, vertex_buffer_unified_memory, vertex_program, vertex_program1_1, vertex_program2,
vertex_program2_option, vertex_program3
GL_S3_s3tc
GL_SGIS: generate_mipmap, texture_lod
GL_SGIX: depth_texture, shadow
GL_SUN_slice_accum
GL_WIN_swap_hint
WGL_EXT_swap_control
OpenGL Windowed 854x480 32 color 32 texture 60Hz Vsync SmoothLines
DInput: Enumerating device - Type: 0x00000413 Instance Name: "Keyboard" Product Name: "Keyboard"
DInput: Enumerating device - Type: 0x00010215 Instance Name: "XBOX 360 For Windows (Controller)" Product Name: "XBOX 360 For Windows (Controller)"
DInput: Enumerating device - Type: 0x00000112 Instance Name: "Mouse" Product Name: "Mouse"
Found 3 DirectInput devices:
0: 'Keyboard' axes: 0, hats: 0, buttons: 256 (buffered)
1: 'XBOX 360 For Windows (Controller)' axes: 5, hats: 1, buttons: 10 (buffered)
2: 'Mouse' axes: 3, hats: 0, buttons: 3 (buffered)
Players joined: P1, P2
Lost focus to: StepMania.exe
Language: en
Current renderer: OpenGL
Theme: Simply-Love-SM5-master

Partial log:
00:09.277: RageSound: Load "/Themes/Simply-Love-SM5-master/Sounds/ScreenEdit marker.ogg" (precache: 1)
00:09.293: RageSound: Load "/Themes/_fallback/Sounds/_switch up.ogg" (precache: 1)
00:09.300: RageSound: Load "/Themes/_fallback/Sounds/_switch down.ogg" (precache: 1)
00:09.307: RageSound: Load "/Themes/Simply-Love-SM5-master/Sounds/MusicWheel sort.ogg" (precache: 1)
00:09.310: RageSound: Load "/Themes/Simply-Love-SM5-master/Sounds/MusicWheel sort.ogg" (precache: 1)
00:09.310: RageSound: Load "/Themes/_fallback/Sounds/_switch down.ogg" (precache: 0)
00:09.310: RageSound: Load "/Themes/Simply-Love-SM5-master/Sounds/_save.ogg" (precache: 0)
00:09.312: RageSound: Load "/Themes/_fallback/Sounds/GameplayAssist clap.ogg" (precache: 1)
00:09.314: RageSound: Load "/Themes/_fallback/Sounds/GameplayAssist clap.ogg" (precache: 1)
00:09.314: RageSound: Load "/Themes/_fallback/Sounds/GameplayAssist clap.ogg" (precache: 1)

-- End of report

Wolfman put up a build that should fix the crash. https://mega.nz/#!8NdEhRoZ!ruMzzjcT8-2dEw0uWzh8DSX-7WgYHKU8ouQ3UT_fbOs

For the mods related question, I forgot about the spline system when we were talking earlier.
Play with this code until you have it doing what you want.

local function simple_rot_spline_demo(notefield)

	-- This assumes dance game mode.  There are 8 entries in column_rots to

	-- make it work in double mode.  The rotations are picked to make all

	-- arrows point down.

	-- Fetching a notefield can be done on gameplay with this:

	-- SCREENMAN:GetTopScreen():GetChild("Player"..ToEnumShortString(pn))

	--   :GetChild("NoteField")

	-- Edit mode names its actors differently, so that doesn't work in edit

	-- mode.  In edit mode, the player actor is simply named "Player".

	-- Docs/Luadoc/Lua.xml has more info on splines.

	local column_rots= {pi * -.5, 0, pi, pi * .5, pi * -.5, 0, pi, pi * .5,}

	for i, column in ipairs(notefield:get_column_actors()) do

		local rot_handler= column:get_rot_handler()

		-- NoteColumnSplineMode_Position makes the column ignore mods like dizzy,

		-- twirl, and roll, because those also change the note's rotation.

		-- NoteColumnSplineMode_Offset would make it sum the effect of mods and

		-- the spline.

		rot_handler:set_spline_mode("NoteColumnSplineMode_Position")

		local spline= rot_handler:get_spline()

		-- Since the notes don't need to change rotation over time, the spline

		-- has only one point.  That one point sets the x and y rotation to 0,

		-- and fetches the z rotation from the column_rots table.

		spline:set_loop(true):set_size(1):set_point(1, {0, 0, column_rots[i]})

		-- If the spline had more than one point, it would need to be solved to

		-- make the notes smoothly turn.

		-- spline:solve()

	end

end

Thanks for the help with code and the new version from Wolfman. The software can now use edit mode properly, and I also made and saved changes to a file just to make sure that would work, and it did.