[UE 5.1] Trying to create a control rig for SCK Casual Mesh based on the mannequin

Hello !
I’m learning UE 5.1 and I wanted to animate the Character I found into the SCK casual free kit.
He’s based on the mannequin, but an older version of the one inside 5.1.
I tried to follow the steps from this video : 2 Creating a Control Rig for the Stylized Character Kit - YouTube
But I had a lot of errors, and it partially works.
So I decided to dig into the control rig and check every graph, functions and variables to mimic the CR_Mannequin_Body.
It’s better now, but I still have some errors.
Here is my result in forwards solve :


In construction event :

and in backward solve :

The control rig compiles without error, but as you can see there are some issue.
If I move the controllers it seems working but legs and right shoulder are reversed :confused:
Also, if I move the body_offset_ctrl the hips’ mesh stays in place.
Spine_02_ctrl and Spine_03_ctrl are at the same place, maybe it’s because the hierarchy isn’t the same between the mannequin and SCK Casual skeleton :

Do you have any idea how to fix this ?

I also encountered the same problem

I also encountered the same problem

Same issue here, anyone found the solution?

spine 3 seems to be rotate by 90 degrees, but it’s unclear how that happens and how to fix it.