onover doesnt work for hotspot in VR mode only for mobile devices

<!-- startup action - load the first scene -->
	<action name="startup" autorun="onstart">
		if(startscene === null OR !scene[get(startscene)], copy(startscene,scene[0].name); );
		loadscene(get(startscene), null, MERGE);
		if(startactions !== null, startactions() );
	</action>


    <action name="transition">
        <!--  move the hotspot to the destination position  -->
        tween(hotspot[%1].alpha, 0.0, 0.25, default); tween(hotspot[%1].rotate, %4, 0.25, default); tween(hotspot[%1].ath, %2, 0.25, default); tween(hotspot[%1].atv, %3, 0.25, default, WAIT);
        <!--  look at the hotspot position  -->
        looktohotspot(%1); set(plugin[loading].visible,true);
        <!--  load and blend to the new scene  -->
        loadscene(%5, null, MERGE, BLEND(2));
        <!--  save the startup view position of the scene -->
        copy(startview_hlookat, view.hlookat); copy(startview_vlookat, view.vlookat); copy(startview_fov, view.fov);
        <!--  look at the given position and wait for blending  -->
        lookat(%6, %7, %8); wait(LOAD); set(plugin[loading].visible,false); wait(BLEND);
        <!--  return to startup position  -->
        oninterrupt(break); lookto(get(startview_hlookat), get(startview_vlookat), get(startview_fov), smooth(60,-60,180));
    </action>
    
    <!-- %1 = name of plugin where is the circular picture to show -->
    <action name="hs_over">
        tween(scale, 1.5, 0.2); tween(hotspot[%1].scale, 0.68, 0.2); tween(hotspot[%1].oy, -11, 0.2);
    </action>
    
    <action name="hs_out">
        tween(scale, 1.0, 0.2); tween(hotspot[%1].scale, 0.45, 0.2); tween(hotspot[%1].oy, -8, 0.2);
    </action>


    <!--autorotate enabled="true" speed="3"/-->
    
        
        
	
	<scene name="scene_scene_1" title="scene_1" onstart="" havevrimage="true" thumburl="scene_1_tiles/thumb.jpg" lat="" lng="" heading="">


		<view hlookat="0" vlookat="0" fovtype="MFOV" fov="120" maxpixelzoom="2.0" fovmin="70" fovmax="140" limitview="auto"/>


		<preview url="scene_1_tiles/preview.jpg"/>


		<image type="CUBE" multires="true" tilesize="512" if="!webvr.isenabled">
			<level tiledimagewidth="2304" tiledimageheight="2304">
				<cube url="scene_1_tiles/%s/l2/%v/l2_%s_%v_%h.jpg"/>
			</level>
			<level tiledimagewidth="1152" tiledimageheight="1152">
				<cube url="scene_1_tiles/%s/l1/%v/l1_%s_%v_%h.jpg"/>
			</level>


			<mobile>
				<cube url="scene_1_tiles/mobile/mobile_%s.jpg"/>
			</mobile>
		</image>


		<image if="webvr.isenabled" >
			<cube url="scene_1_tiles/vr/pano_%s.jpg"/>
		</image>


		


		<hotspot name="hs0_back" onclick="looktohotspot(hs0_back); loadscene(scene_scene_2, null, MERGE, BLEND(1));" onout="hs_out(hs0);" onover="hs_over(hs0);" atv="1.46" ath="-1.6" url="/web/images/krpano/rounded-back.png" zorder="1" height="87" width="72"/>
		<hotspot url="rounded/120x120/scene_2.png" name="hs0" atv="1.46" ath="-1.6" enabled="false" zorder="2" oy="-8" scale="0.45"/>
	</scene>