Can't copy keys or edit the curve in editor

[Anonymous]

Hallo everybody,

I'm using CAT for a very long time, but come accross a problem I havn't been able to solve, yet.

Sometimes I can't just copy/paste keys, esp. the first and last of an animation loop. I am animating the hand of a custom human CAT rig.

The trajectory-loop is broken (like seen in the image) and I cannot edit the whole curve in the editor. Whatever I do with the tangents, nothing happens. Max does the keying with autokey, but they seem to be fake, since my loop isn't complete.

I also tried to attach a IK target, but that doen't solve the problem, although I get a position key with it...more often than not using it.

Anyone has an idea, tutorial or someone to refer to, that might help?