strange curves in Maya graph editor

Hito

can someone shed light as to what the hell is going on here? I didn't set the keys, but they look different than what I normally see, the key markers are diamonds instead of the usual circles. I can't get them to show the curve handles.

if I click set tangents to spline I get the odd spikey curve on the left. If I set tangents to angled I get the peaked line on the right.

What am I missing here?

ivars

Could it be that you've set it to use synchronized quaternion interpolation?

Hito

Ah... that was indeed it. Thanks!