>>2866252IDK, anon, you must be doing something wrong. Provide the motion & pmx you're experiencing trouble with or at least a screen recording of your actions with mouse pointer capture enabled (via OBS, for example).
If you're using MMM, "Reverse Bone" is only meant for mirroring the model's selected bone angles and positions for the current frame. Because they are calculated from the default state that is determined by their parents, you can try temporarily parenting leg IKs to the lower torso and arm IKs to the upper body or shoulder P bones instead of the root bone.
On the other hand, selecting all motion keyframes, cutting them out, and using "Reveral Paste" should provide you with a ready-to-use motion. (Beware that the more keys there are, the longer will the processing take. If you try to mirror a baked motion with too many keys, it might freeze perpetually. You can also reverse display tabs one by one.)
>>2866239I would not call MMD "very easy to use" with its interface. MikuMikuMoving is far easier and better for animation. Blender is a better investment in the long run, sure, but if you're just starting, you should first see if you actually have the determination to be a 3D modeler rather than a whim or desire to make naked girls dance.
>>2866251How many MAYA-created videos using VMD animations do you know?
