Sound is out of sync after publishing

[zxKevin]

The sound is in perfect sync while editing, but the moment it's published, it becomes out of sync. This is only for the sfx, the bgm seems fine. I have 2 layers of sfx, since there's a moment where 2 sounds happen at the exact same time.

Note: I convert it to Video with Swivel, since I'm too lazy to watch it till the sound problem occurs.

Why does this happen?

I use Adobe Flash CC 14.2.0.20

[kglad]

sounds attached to a timeline that you want to sync to that time line need to have their sync property assign to stream, not event.  that's not available with html5 publishing.

you can use actionscript (none html5) or createjs (html5) to sync sound, too.

[zxKevin]

I'm using actionscript 3, and set all the sounds to Stream. Still have the same problem.

[kglad]

if you're not publishing for html5 someone will need to check your files.

[zxKevin]

Any other way?..

[kglad]

it's extraordinary for a streamed sound to go out of sync.

i suspect something not apparent (from what you posted) is occurring.  for example, a user might import a video to a timeline and mislead forum helpers.