UserAgent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:44.0) Gecko/20100101 Firefox/44.0

Example URL:

Steps to reproduce the problem:
1. Use Chrome PPAPI player to play video
2. Switch on stage video
3. "Enable hardware acceleration" in Settings dialog
4. Set wmode = "direct";

What is the expected behavior?
Smooth playback

What went wrong?
If switch on stage video in this case playback becomes jerky on chrome with PPAPI especially at start.

Did this work before? N/A 

Is it a problem with Flash or HTML5? Flash

Does this work in other browsers? Yes 

Chrome version: 48.0.2564.82  Channel: n/a
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version: Shockwave Flash  20,0,0,286

Switching on hardware acceleration on chrome with PPAPI leads to side effect - flickering/jumping. Flickering/jumping is noticeable especially at start of the video. If switch off stage video in this case playback is smooth on chrome with PPAPI.There is not mentioned flickering/jumping if play video in Firefox and stage video is switched on/off.