I use a rotation for hotspots. In flash, it works. But in Html5, htospots are not correctly turned.
<hotspot name="spot1" style="skin_hotspotstyle2" scale="0.005" rotate="90"...
See the difference : Left=html5 Right=flash
Note : It's a flat projection using Vtour multires
After a test, I've noticed that with html5, I have to devide per 2 the angle to obtain the correct angle. I'm going to disable the flash !