Does anyone know how to fix a weird rotation after the blocking stage?
It always happens to me every time I finish my blocking stage in stepped mode change the it into linear mode.

i found it that it always occurs in the IK wrist area. but sometimes in the body and foot control too.

Is the problem because i rotate the controllers in a freely mode instead of going each axis one by one?

I tried rotating using the gimbal mode, but it limits me to the position/pose  that i want, cause some times x and z axis they locked together  compare to local mode.

I tried changing the rotation order but it just messes up my scene more, but some times  it work in some keyframe but then the following and previous keyframe affected as well and i have to fix every each individual keyframe to get correct pose. so i have to open the Graph editor to check the curve.

Does anyone know how to solve this problem?

I would like to know how do you guys do a blocking stage while rotating parts of the body. do you guys always have to be mindful while rotating the parts to in which the direction moving? or just focus on the poses while keying not to worry to much about rotation order?

I noticed some times in the channel editor the rotation gone from -360 to 0 where i think i should  go from -360 to -720 maybe. but after changing this it affects other keyframe too... this is really annoys me...

hope you guys can give me a hint in this problem.
thanks in advanced guys...

Thanks Mathias for the reply and the link. it's very useful... thank you.
and as for the Graph Editor I already tried the Euler filter, and it still doesn't fix any thing. I am not sure if this is a gimbal lock problem or just rotation problem.

I think the solution for me is to be mindful while rotating for the pose. And for the blocking of animation that i've done and gone weird i guess i just need to forgo about it and start a new one instead of spending hours fixing it.

Thanks for the great link. it gives me more understanding about gimbal lock.

but some times it just very frustrating while roating using the gimbal mode, i couldn't reach the pose i want, cause some times x and z or anyother 2 axis will lock together, and i found it the workaround is to change to the rotation axis order, but if tried to change the order again for different keyframe the previous pose that i key will change too, so it the animation doesn't flow correctly....

well thanks anyway...