Retarget and Replace mannequin with metahuman:



In Quxie bridge, download and then click add button on the chosen character
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enable missing
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restart UE
Choose filter by Skeletal mesh in Metahuman folder
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R click on Body mesh, assign skeleton
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choose 1st one, sk_mannequin
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Open 3rd person BP
change mesh to the metahuman body just created
Now only hands and feets visible:
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Open metahuman BP, viewport
copy the components below, and paste in 3rd person viewport (do 1 by 1)
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Child them under the mesh, and reset their locations and rotations to 0
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Now the body position not yet fit
Choose Torso component, click the microscope icon at skeletal mesh to open the browser
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R click on the Toroso mesh, assign mannequin skeleton, same as previous
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Back to 3rd person BP, compliance, and select Anim class as ABP_Quinn_C
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Repeat the same steps on Legs and Feets component

To make all other animations created for mannequin that can be adopted in metahuman, make the following construction script:
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In LODSync component, rename Body to Mesh in
Custom LOD Mapping and
Components to Sync index 0
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Now the feets are still not moved correctly (like skating),
to fix this:
Go to ABP_Manny, anim graph, open control rig node
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In step 5, Full body IK node, change Root from Pelvis to Animation root
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Copy hair and other facial components, plus LODSync to 3rd person BP too
Child facial component under face, LOD sync independently
Change forced LOD to 0
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