StepMania v5.0 Preview 4 crash report (build 1, 20111005 @ 15:26:02 Central Daylight Time)
--------------------------------------

Crash reason: Assertion '0' failed

Thread: Main thread
RageSurface_Load_PNG.cpp:23
RageSurface_Load_PNG.cpp:23
RageSurface_Load_PNG.cpp:23
RageTextureManager.cpp:123 RageTextureManager::LoadTexture(__blank__).
ScreenGameplay.cpp:142 Assertion '0' failed
Thread: Decode thread
RageSoundDriver_Generic_Software.cpp:197
RageSoundDriver_Generic_Software.cpp:197
RageSoundDriver_Generic_Software.cpp:197
RageSoundDriver_Generic_Software.cpp:197
RageSoundDriver_Generic_Software.cpp:197
Thread: Mixer thread
Thread: Music thread
RageFileDriverDirectHelpers.cpp:227 C:/Users/Limited/Documents/StepMania/Themes/itg3/Sounds/*
RageFileDriverDirectHelpers.cpp:227 C:/ProgramData/StepMania 5/Themes/itg3/Sounds/*
GameSoundManager.cpp:356
GameSoundManager.cpp:356
GameSoundManager.cpp:356
Thread: Worker thread (MemoryCardWorker)
Thread: Worker thread (/@mc1int/)
Thread: Worker thread (/@mc2int/)
Thread: DirectInput thread
InputHandler_DirectInput.cpp:775
InputHandler_DirectInput.cpp:751
InputHandler_DirectInput.cpp:770
InputHandler_DirectInput.cpp:775
InputHandler_DirectInput.cpp:751

005a430f: void debug_crash(void) [00400000+1a42e0+2f]
0058493c: void sm_crash(char const *) [00400000+184920+1c]
0044e8e1: void PlayerInfo::Load(enum PlayerNumber,enum MultiPlayer,bool,int) [00400000+4e7c0+121]
0046076e: void ScreenGameplayNormal::FillPlayerInfo(class std::vector<class PlayerInfo,class std::allocator<class PlayerInfo> > &) [00400000+60710+5e]
72d069ed: MSVCR90!memcpy_s [72cd0000+369a3+4a]
72c45242: MSVCP90!std::allocator<wchar_t>::deallocate [72c40000+5081+1c1]
72c459d5: MSVCP90!std::allocator<char>::allocate [72c40000+5929+ac]
72c463aa: MSVCP90!std::basic_string<char,std::char_traits<ch ar>,std::allocator<char> >::assign [72c40000+632a+80]
72c463b5: MSVCP90!std::basic_string<char,std::char_traits<ch ar>,std::allocator<char> >::assign [72c40000+632a+8b]
72c473c3: MSVCP90!std::basic_string<char,std::char_traits<ch ar>,std::allocator<char> >::assign [72c40000+73b2+11]
0040595b: void Actor::SetName(class StdString::CStdStr<char> const &) [00400000+5920+3b]
004606ef: class Screen * CreateScreenGameplayNormal(class StdString::CStdStr<char> const &) [00400000+60680+6f]
00666fc5: void RageMutex::Unlock(void) [00400000+266fb0+15]
006e3c64: void ScreenManager::PrepareScreen(class StdString::CStdStr<char> const &) [00400000+2e3c40+24]
72c45ec4: MSVCP90!std::basic_string<char,std::char_traits<ch ar>,std::allocator<char> >::~basic_string<char,std::char_traits<char>,std:: allocator<char> > [72c40000+5ebb+9]
0040157c: class StdString::CStdStr<char> Screen::GetNextScreenName(void)const [00400000+1510+6c]
00445208: void ScreenSplash::HandleScreenMessage(class StdString::CStdStr<char>) [00400000+451c0+48]
72c472aa: MSVCP90!std::basic_string<char,std::char_traits<ch ar>,std::allocator<char> >::basic_string<char,std::char_traits<char>,std::a llocator<char> > [72c40000+7286+24]
005b8bae: void Transition::UpdateInternal(float) [00400000+1b8b60+4e]
005cb1c7: void MenuTimer::Update(float) [00400000+1cb110+b7]
7743e003: ntdll!RtlFreeHeap [77410000+2df85+7e]
72d33c1b: MSVCR90!free [72cd0000+63b4e+cd]
72d33c3a: MSVCR90!free [72cd0000+63b4e+ec]
004024da: void Screen::Update(float) [00400000+24c0+1a]
72d33c3a: MSVCR90!free [72cd0000+63b4e+ec]
72c45e43: MSVCP90!std::basic_string<char,std::char_traits<ch ar>,std::allocator<char> >::_Tidy [72c40000+5dfb+48]
72c45ec4: MSVCP90!std::basic_string<char,std::char_traits<ch ar>,std::allocator<char> >::~basic_string<char,std::char_traits<char>,std:: allocator<char> > [72c40000+5ebb+9]
006431d2: void RageLog::Trace(char const *,...) [00400000+2431a0+32]
72c558ca: MSVCP90!std::operator==<char,std::char_traits<char >,std::allocator<char> > [72c40000+158ba+10]
006e46a4: void ScreenManager::Update(float) [00400000+2e4510+194]
0044bf6d: void ScreenWithMenuElements::Update(float) [00400000+4bf60+d]
006ab100: void GameState::Update(float) [00400000+2ab090+70]
00664c42: void RageTextureManager::Update(float) [00400000+264be0+62]
005847a2: void GameLoop::RunGameLoop(void) [00400000+184680+122]
72c45e43: MSVCP90!std::basic_string<char,std::char_traits<ch ar>,std::allocator<char> >::_Tidy [72c40000+5dfb+48]
72c45ec4: MSVCP90!std::basic_string<char,std::char_traits<ch ar>,std::allocator<char> >::~basic_string<char,std::char_traits<char>,std:: allocator<char> > [72c40000+5ebb+9]
00588a77: main() [00400000+187bf0+e87]
72cf36c5: MSVCR90!_set_flsgetvalue [72cd0000+236b6+f]
72cf38b3: MSVCR90!initptd [72cd0000+23753+160]
005a36f4: int GetWin32CmdLine(char * * &) [00400000+1a3640+b4]
005a3475: WinMain@16() [00400000+1a3460+15]
00771a6f: __tmainCRTStartup() [00400000+37192f+140]
77449ea5: ntdll!RtlInitializeExceptionChain [77410000+39e6f+36]
00b573d0: StepMania-SSE2!00400000
00b573d0: StepMania-SSE2!00400000

Static log:
StepMania v5.0 Preview 4
Compiled 20111005 @ 15:26:02 Central Daylight Time (build 1)
Log starting 2011-12-13 16:44:19
Loading window: win32
Windows 6.1 (Win7) build 7601 [Service Pack 1]
Memory: 3032mb total, 4095mb swap (3809mb swap avail)
Video driver: Mobile Intel(R) 4 Series Express Chipset Family [Intel Corporation]
8.15.10.1994, 11-6-2009 [pci\ven_8086&dev_2a42&subsys_02aa1028]
Drive: "TOSHIBA MK2555GS" Driver: iaSto DMA: yes
Drive: "Optiarc DVD+-RW AD-7580" Driver: iaSto DMA: yes
Sound device 0: Speakers / Headphones (IDT High, 6.1, MID 1, PID 100
Sound device 1: Modem #0 Line Playback, 5.0, MID 1, PID 81 (INACCURATE)
Sound device 2: Independent (R.T.C.) Headphones, 6.1, MID 1, PID 100
WARNING: ReadFile(Save/ThemePrefs.ini): No such file or directory
DirectSound Driver: Primary Sound Driver
DirectSound Driver: Speakers / Headphones (IDT High Definition Audio CODEC) {0.0.0.00000000}.{1b8b283d-ed97-45a0-8259-7d13554ccbe7}
DirectSound Driver: Independent (R.T.C.) Headphones (IDT High Definition Audio CODEC) {0.0.0.00000000}.{8a88802b-59c3-41a2-a103-cd99295ca33c}
DirectSound sample rates: 100..200000 (continuous)
Software mixing at 44100 hz
Sound driver: DirectSound-sw
Lights driver: SystemMessage
Lights driver: Export
Video renderers: 'd3d,opengl'
WARNING: RageDisplay_D3D::TryVideoMode( 0, 1366, 768, 32, 0, 1 )
D3D Fullscreen 1366x768 32 color 32 texture 60Hz Vsync NoSmoothLines
Found 2 DirectInput devices:
0: 'Keyboard' axes: 0, hats: 0, buttons: 256 (buffered)
1: 'Mouse' axes: 3, hats: 0, buttons: 3 (buffered)
WARNING: RageDisplay_D3D::TryVideoMode( 0, 1366, 768, 32, 0, 1 )
WARNING: RageDisplay_D3D::TryVideoMode( 0, 1366, 768, 32, 0, 1 )
Attempting to connect to: voice.stepmaniaonline.eu, Port: 8765
Beginning to connect
Server Version: 128 Stepmaniaonline.eu ver2.0
WARNING: No options in row "list,Steps" were selected, and no fallback row found; selected entry 0
WARNING: No options in row "list,Steps" were selected, and no fallback row found; selected entry 0
Mixing underruns: 1
Players joined: P1
Top Screen: ScreenStageInformation
Language: en
Current renderer: Direct3D
Theme: itg3

Partial log:
11:07.223: RageBitmapTexture: Loaded '/Themes/itg3/BGAnimations/ScreenGameplay overlay/demonstration gradient.png' (256x256); RGBA8, source 256,256; image 256,256.
11:07.268: Loading /Themes/itg3/BGAnimations/ScreenWithMenuElements decorations.lua, type FileType_Lua
11:07.270: Loading /Themes/itg3/Graphics/ScreenGameplay StageDisplay.lua, type FileType_Lua
11:07.278: Loading /Themes/itg3/Graphics/ScreenGameplay StageDisplay.lua, type FileType_Lua
11:07.385: Loading /Themes/itg3/BGAnimations/ScreenGameplay out/_round.png, type FileType_Bitmap
11:07.385: Loading /Themes/itg3/BGAnimations/ScreenGameplay out/_cleared bottom.png, type FileType_Bitmap
11:07.385: Loading /Themes/itg3/BGAnimations/ScreenGameplay out/_cleared top.png, type FileType_Bitmap
11:07.421: RageBitmapTexture: Loaded '/Themes/itg3/BGAnimations/ScreenGameplay out/_round.png' (512x128); RGBA8, source 416,116; image 416,116.
11:07.468: RageBitmapTexture: Loaded '/Themes/itg3/BGAnimations/ScreenGameplay out/_cleared bottom.png' (1024x256); RGBA8, source 624,160; image 624,160.
11:07.539: RageBitmapTexture: Loaded '/Themes/itg3/BGAnimations/ScreenGameplay out/_cleared top.png' (1024x256); RGBA8, source 624,160; image 624,160.

-- End of report

This happens in the itg3 theme (http://ssc.ajworld.net/?p=itg3) that was ported to StepMania 5. I have Preview 4. After I selected a song (this was in online mode) this crash occured.