New Menu > Animation > Rotation Order can be used to modify the euler rotational order of an object
Since the release of iClone 7.1 animation core enhancements, some rotational animations gave unexpected results.This is due to limitations of Euler calculations where different rotational order can give different rotational results and sometimes cause gimbal lock (where the axes of the rotation will all of sudden flip). The option to change the rotational order is now available to overcome gimbal lock.