Audio - sound m4a format not work

Link to .capx file (required!):

drive.google.com/folderview

Steps to reproduce:

1. import soundfile.m4a in to folder music

2. Add event "on start of layout"

3. Add action "Audio" choose "Preload"

Observed result:

it's show in dropdown menu as "none - import some audio files first"

Expected result:

it's should be have menu "soundfile" for select

Operating system & service pack:

windows XP & windows 7

Construct 2 version:

r128.2

Hello!

My real name's Porawee Raksasin but call me zack2029 that's my

nickname on several sites, I'm from Thailand.

I'm a game developer in Studio Moji.

I use "construct 2 free edition" develop "Marina Attack"

but ours feature just need more, ours artist decided bought

"construct 2" to develop "Marina Attack -Extended-" a shooting

game from us that's a first most plays our game.

If you need more information of ours game,

please.

visit us : facebook.com/StudioMoji

contact us : studio_mojiexn@hotmail.com

Thanks eyeliner.

version : construct2-r82-setup_26589

After use "Add Layout" and change from "Layout Size 1024, 768" to "Layout Size 800, 600".

it's has an error like this : I can't add new layout and resize layout

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Construct 2 Check failure

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Check failure! This is probably a bug:

Unknown layout property modified!

Condition: false

File: Bars\PropertiesBar - Layout.cpp

Line: 217

Function: void __thiscall LayoutPropertyChangedHandler::OnPropertyChanged(const class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> > &,const class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> > &,const class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> > &)

Build: release 82 (32-bit) checked

Component: Construct 2 IDE

(Last Win32 error: 0)

You are using a 'checked' release of Construct 2, intended for testing, which causes certain errors to be reported this way. Hit Ctrl+C to copy this messagebox - it's useful information for the developers, so please include it with any bug reports! Click 'Abort' to quit (unsaved data will be lost!),'Retry' to turn off messages for this session and continue, or 'Ignore' to continue normally.

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Abort   Retry   Ignore   

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Please help!

Thanks Yann, great work! you're excellent.

Thanks Kyatric, i'll try it. <img src="smileys/smiley20.gif" border="0" align="middle" />

i found lag when action play sound ,play animation and spawn object same times with one condition. How to solve this problem?