I use it all the time. I created a motion profile, so I drag in the fbx and select my custom profile. If you want, I can share the file so you can use it too.

Damn thank you so much for your answer !
I will try that right away.
Thank you for your help and guidance that's much appreciated. Always something new to learn in 3D =)

I do not have WS and that Blend file is bit messy. First, the action is going on "underground" and second, the Rest Pose (although is a T-pose) is twisted by X -90 degrees.
But all that could be easily worked out if you use blend files as a source.

First, you have to extract a T-pose.
Select character armature, switch to Rest Position and export as BVH specifying frames 0 to 0
(if all .blend files come like that, then you may use this T-pose file for all consecutive conversions)

Next, export animation.
Switch to Pose Position and again export BVH 0 to 99 (range is selected automatically)

In CC choose to Convert External Motion, select exported from Blender animation and a T-pose.

Motion would come rotated because of that Pose/Rest inconsistency in blend file. But it's easy to fix in iClone.

Apply motion to any character in iClone.
Using character Transform rotate it by X -90. It would now appear underground but straight as in Blender
Next right mouse click on a clip and use Root Motion > Sample Hip to Root (XYZ) (if it's not available use Split first) to bring the root to the feet where it belongs.
Then switch camera to Orthogonal view and use "G" for top view. Again use Transform and align the character to the center by XY
Switch to side view by an "S" and align character by Z until root is at 0 center. Then you may go to Edit Motion Layer and use Pelvic bone to align feet with the ground.
Use collect clip, save the motion, remove the motion from character, reset its position to the center and reapply the saved motion.

Your newly saved motion should start correctly from the center and be on the ground.
There are some minor motion tweaks would be necessary to correct the pose when character hits the ground at the end.

Hello everyone.
I would need some help with Wonder Dynamics conversion for CC4. I've tried everything that's mentionned, retargeting skeleton, etc. The animation file is either corrupted or looks awful when converted. I don't understand why, when imported into Blender, the animation works just fine.
Any help would be awesome...
I'm joining here the blender file I'm using as a test:

https://drive.google.com/file/d/1nGunXCp78Ia5yKL5yBW8_QxDjE35P6oO/view?usp=sharing

Thank you everyone in advance ! If you succeed in converting or retargeting I would love to know how you proceed and what did I do wrong.

Kind regards,

Kalex

Okay, I made this yesterday just to show you, the workflow is exactly as I see at my first video. That you see here is obviousely not the final result. Many things to modify. Facial animation isn't done yet...







     

Can you post your results, im having a nightmare with foot sliding. Going through the floor when i walk forward. Or up in the air.  Be good to see your workflow. Thanks Charly

Hi guys, for the PERFECT T pose, this is the very easy method to get it



I didn't share my T pose because it was very imperfect

But for now, use motion correction as it like shown in this video is  time consumer and hard. I get a almost perfect motion without any foot sliding using my method and just apply the motion correction at the end. I get a real real good  animation in 5 mn


     

https://forum.reallusion.com/538755/Create-motion-from-video-with-Wonder-Dynamics

It happens because the order of the Root bones is wrong. Remove the root bone and it will work normally

Have u followed vid exact... When you make your video for wonder studio at the beginning just do a quick t pose stance, then use that to make your own. 
Its explained at beginning of tutorial