Multiple video scenes issue with mp3 sound on iPhone in VR mode

Hi,
I've tested a project which contains 4 video scenes (720p/960p) urls injected into a single videoplayer plugin on scene start event.

In "standard" mode the videos are played if there is or not a sound for iPhone.

In "WebVR" mode the videos are played if there is no iPhone sound and I used the play then delayedcall(0.1, pause) to init the videoplayer.
But if I use an iPhone sound on videos I can have a browser page reload during the playback of a video. Difficult to identify the exact issue.

Notes :
- the videoplayer videorurl, posterurl, panovideo, onvideocomplete, volume, width, height, visible attributes/events are updated on the fly during the scene start event.
- splashscreen attribute below is designed to add a play button to activate the first video scene and activate the videoplayer for all videos in VR mode.
- the plugin instance has this setup :

<plugin name="videosceneplayer"
	url.flash="%SWFPATH%/graphics/videoplayer.swf"
	url.html5="%FIRSTXML%/graphics/videoplayer.js"
	width.no-panovideosupport.or.html5.and.ie.and.mobile="100%"
	height.no-panovideosupport.or.html5.and.ie.and.mobile="prop"
	onloaded="SPECIFIC_ACTION"
	onvideoready="SPECIFIC_ACTION"
	videourl="highres.mp4|iphonesound.mp3"
	posterurl="framehighres.jpg"
	videourl.mobile.and.html5.or.tablet.and.html5.or.html5.and.safari="lowres.mp4|iphonesound.mp3"
	posterurl.mobile.and.html5.or.tablet.and.html5.or.html5.and.safari="framelowres.jpg"
	autoresume="true"
	preferredformat.chrome="mp4"
	preferredformat.firefox="webm"
	preferredformat.safari="mp4"
	preferredformat.ie="mp4"
	preferredformat.edge="mp4"
	buffertime="0.1"
	volume="1.0"
	pausedonstart="true"
	loop="false"
	onvideocomplete=""
	enabled="false"
	zorder="0"
	visible="false"
	panovideo="false"
	align="center"
	ox="0"
	oy="0"
	keep="true"
	delay="0"
	mute="false"
	splashscreen="false"
	/>

Also have the same kind of issue with WebVR and video hotspot if using the play() then delayedcall(0.1, pause()) method.