Sequencer not render sound

Development Rendering
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1

Hello!
I made a simple clip using animation and sound. I watched the video with a lesson https://docs.unrealengine.com/latest/INT/Videos/PLZlv_N0_O1gaiA_sfpjATUprVW7B9FcK1/index.html
After render video (avi) there is no sound. Looked a lot of information in UE4 answerhub but can not find an answer.
Why is there no sound?

2

Sequencer does not render out videos with audio

3

Thank you so much. My English is bad. I did not hear how to talk about this error.