Hi,
okay, after a lot of testing I was able to reproduce that,
I need to check this in detail but I think the problem might be a too small "camroll" value (the camroll was calculated dynamically by the gyro plugin):
when a value becomes very small and converted to a string then JS prints the value in the form "1.2345e-10" but when putting a number in that from to a CSS 3D transform style then the rendering fails (can be called a browser bug),
for hlookat, vlookat and fov I'm already checking and correcting this situation but not for the "camroll" setting - I will add that in the next release,
best regards,
Klaus