Game crashes after preload (took from bug report because i made it into the wrong category)

[Reycko]

Please check for duplicates, similar issues or closed issues with the same problem, as well performing simple troubleshooting steps (such as deleting the export folder if it's an issue with compiling, reinstalling Kade Engine) before submitting an issue.

If you are playing a downloaded version of the game, what operating system are you using?

Windows (x86), Windows (x86_64), Linux, or macOS? Specify below.
x64 Windows (Source Code)

What version of the game are you using? Look in the bottom left corner of the main menu.

KE 1.7

Have you identified any steps to reproduce the bug? If so, please describe them below. Use images if possible.

i have no idea

Please describe your issue. Provide extensive detail and images if possible.

I don't have a single idea of what causes the crash, but i'll put a video. (if this links to a 404 error it means it's not uploaded yet or deleted)

Terminal log:

> Executing task: lime test windows --connect 6000 <

source/ModchartState.hx:136: characters 7-24 : Warning : Std.is is deprecated. Use Std.isOfType instead.
D:/Haxe/haxe/lib/hscript/2,4,0/hscript/Interp.hx:145: characters 8-18 : Warning : Std.is is deprecated. Use Std.isOfType instead.
D:/Haxe/haxe/lib/hscript/2,4,0/hscript/Interp.hx:180: characters 8-18 : Warning : Std.is is deprecated. Use Std.isOfType instead.
D:/Haxe/haxe/lib/hscript/2,4,0/hscript/Interp.hx:221: characters 8-18 : Warning : Std.is is deprecated. Use Std.isOfType instead.
D:/Haxe/haxe/lib/hscript/2,4,0/hscript/Interp.hx:515: characters 8-18 : Warning : Std.is is deprecated. Use Std.isOfType instead.
D:/Haxe/haxe/lib/hscript/2,4,0/hscript/Interp.hx:646: characters 10-42 : Warning : Std.is is deprecated. Use Std.isOfType instead.
D:/Haxe/haxe/lib/newgrounds/1,1,5/lib/Source/io/newgrounds/components/ScoreBoardComponent.hx:55: characters 24-44 : Warning : Std.is is deprecated. Use Std.isOfType instead.
D:/Haxe/haxe/lib/newgrounds/1,1,5/lib/Source/io/newgrounds/components/ScoreBoardComponent.hx:55: characters 49-66 : Warning : Std.is is deprecated. Use Std.isOfType instead.
D:/Haxe/haxe/lib/actuate/1,8,9/src/motion/actuators/SimpleActuator.hx:222: characters 8-29 : Warning : Std.is is deprecated. Use Std.isOfType instead.
D:/Haxe/haxe/lib/actuate/1,8,9/src/motion/Actuate.hx:147: characters 7-40 : Warning : Std.is is deprecated. Use Std.isOfType instead.
D:/Haxe/haxe/lib/actuate/1,8,9/src/motion/Actuate.hx:248: characters 7-40 : Warning : Std.is is deprecated. Use Std.isOfType instead.
D:/Haxe/haxe/lib/actuate/1,8,9/src/motion/Actuate.hx:312: characters 8-41 : Warning : Std.is is deprecated. Use Std.isOfType instead.
D:/Haxe/haxe/lib/actuate/1,8,9/src/motion/Actuate.hx:323: characters 10-37 : Warning : Std.is is deprecated. Use Std.isOfType instead.
D:/Haxe/haxe/lib/actuate/1,8,9/src/motion/Actuate.hx:329: characters 17-43 : Warning : Std.is is deprecated. Use Std.isOfType instead.
D:/Haxe/haxe/lib/actuate/1,8,9/src/motion/actuators/MethodActuator.hx:73: characters 8-29 : Warning : Std.is is deprecated. Use Std.isOfType instead.

Compiling group: haxe
cl.exe -Iinclude -ID:/Haxe/haxe/lib/linc_luajit/git//linc/ -ID:/Haxe/haxe/lib/discord_rpc/git/linc/ -nologo /WX- /fp:precise -DHX_WINDOWS -GR -O2(optim-std) -Zi(debug) -FdD:\FNFMods\FNFKadeEngine1.7SC\export\release\windows\obj\obj/msvc1964-nc/vc.pdb(debug) -Od(debug) -O2(release) -Os(optim-size) -FS -Oy- -c -EHs -GS- -ID:/Haxe/haxe/lib/hxcpp/4,2,1/include -DHXCPP_M64 -DHXCPP_VISIT_ALLOCS(haxe) -DHXCPP_GC_BIG_BLOCKS(gc) -DHX_SMART_STRINGS(haxe) -DHXCPP_API_LEVEL=400(haxe) -D_CRT_SECURE_NO_DEPRECATE -D_ALLOW_MSC_VER_MISMATCH -D_ALLOW_ITERATOR_DEBUG_LEVEL_MISMATCH -DHX_WIN_MAIN(main) -wd4996 ... tags=[haxe,static]
 - src/openfl/net/SharedObject.cpp  [haxe,release]
 - src/sys/io/FileOutput.cpp
 - src/polymod/ModMetadata.cpp
 - src/io/newgrounds/objects/events/_Response/Response_Impl_.cpp
 - src/MusicBeatState.cpp
 - src/haxe/io/Input.cpp
 - src/__boot__.cpp
 - src/flixel/addons/ui/FlxUI.cpp 
 - src/flixel/util/FlxSave.cpp 
 - src/openfl/display/Stage.cpp  [haxe,release]
 - src/__resources__.cpp 
 - src/flixel/addons/ui/FlxUIState.cpp 
 - src/sys/net/Socket.cpp 
 - src/polymod/format/CSVParseFormat.cpp 
 - src/sys/net/Host.cpp
 - src/polymod/format/XMLParseFormat.cpp
 - src/sys/Http.cpp 
 - src/ApplicationMain.cpp 
 - src/polymod/format/JSONParseFormat.cpp 
 - src/lime/app/_Future/FutureWork.cpp  [haxe,release]
 - src/sys/ssl/_Socket/SocketOutput.cpp 
 - src/sys/io/FileInput.cpp 
 - src/sys/ssl/Socket.cpp 
 - src/openfl/display/Window.cpp  [haxe,release]
 - src/lime/app/Future.cpp  [haxe,release]
 - src/sys/net/_Socket/SocketOutput.cpp 
 - src/haxe/ds/BalancedTree.cpp 
 - src/sys/ssl/_Socket/SocketInput.cpp 
 - src/openfl/text/TextField.cpp  [haxe,release]
 - src/polymod/Polymod.cpp 
 - src/polymod/backends/PolymodAssetLibrary.cpp 
 - src/EReg.cpp 
 - src/sys/net/_Socket/SocketInput.cpp

Compiling group: __resources__
cl.exe -nologo /WX- /fp:precise -DHX_WINDOWS -GR -O2(optim-std) -Zi(debug) -FdD:\FNFMods\FNFKadeEngine1.7SC\export\release\windows\obj\obj/msvc1964-nc/vc.pdb(debug) -Od(debug) -O2(release) -Os(optim-size) -FS -Oy- -c -EHs -GS- -ID:/Haxe/haxe/lib/hxcpp/4,2,1/include -DHXCPP_M64 -DHXCPP_VISIT_ALLOCS(haxe) -DHXCPP_GC_BIG_BLOCKS(gc) -DHX_SMART_STRINGS(haxe) -DHXCPP_API_LEVEL=400(haxe) -D_CRT_SECURE_NO_DEPRECATE -D_ALLOW_MSC_VER_MISMATCH -D_ALLOW_ITERATOR_DEBUG_LEVEL_MISMATCH -DHX_WIN_MAIN(main) -wd4996 ... tags=[haxe]
 - src/resources/__res_28.cpp  [optim-none]
 - src/resources/__res_18.cpp  [optim-none]
 - src/resources/__res_16.cpp  [optim-none]
 - src/resources/__res_71.cpp  [optim-none]
 - src/resources/__res_30.cpp  [optim-none]
 - src/resources/__res_69.cpp  [optim-none]
 - src/resources/__res_26.cpp  [optim-none]
 - src/resources/__res_67.cpp  [optim-none]
 - src/resources/__res_9.cpp  [optim-none]
 - src/resources/__res_31.cpp  [optim-none]
 - src/resources/__res_51.cpp  [optim-none]
 - src/resources/__res_45.cpp  [optim-none]
 - src/resources/__res_25.cpp  [optim-none]
 - src/resources/__res_43.cpp  [optim-none]
 - src/resources/__res_39.cpp  [optim-none]
 - src/resources/__res_7.cpp  [optim-none]
 - src/resources/__res_29.cpp  [optim-none]
 - src/resources/__res_60.cpp  [optim-none]
 - src/resources/__res_6.cpp  [optim-none]
 - src/resources/__res_52.cpp  [optim-none]
 - src/resources/__res_62.cpp  [optim-none]
 - src/resources/__res_4.cpp  [optim-none]
 - src/resources/__res_40.cpp  [optim-none]
 - src/resources/__res_68.cpp  [optim-none]
 - src/resources/__res_46.cpp  [optim-none]
 - src/resources/__res_44.cpp  [optim-none]
 - src/resources/__res_2.cpp  [optim-none]
Link: ApplicationMain.exe
   Création de la bibliothèque ApplicationMain.lib et de l'objet ApplicationMain.exp (English translation: Creating the ApplicationMain.lib library and the ApplicationMain.exp object)
The terminal process "C:\WINDOWS\System32\cmd.exe /d /c lime test windows --connect 6000" terminated with exit code: 1.

[Reycko]

Fixed, thanks to this troubleshooting help discussion