useFlash:true messes up Wowza player UI bitrate button

Hi! While using “useFlash”:true parameter in the player to serve IE 11 users, something happens with the player’s bitrate [HD] button. It renders the button to be all white depending on browser/OS.

Also, for some reason OS X El Capitan + Chome prefers to choose the flash version.

Any ideas or workarounds?

Thanks!