Retargeted animation rescales my character

Hello,

I am trying to use a custom character downloaded from SketchFab. SpartanArmor

This character imports at roughly twice the size of Manny, which is what I wanted. I am able to retarget the Manny animations to this character with no issues. When I try to use an animation from Mixamo/Cascadeur/Blender they make my character giant. 20-30x. When I retarget the mixamo anim to Manny, there are no issues. I’ve also tried retargeting to Manny THEN to the sketchfab character but it still has this scale issue. The issue must be with the character somehow. But I can’t seem to fix it. I’ve tried adjusting the scale in the retargeter with no success. I’ve also set the Bone Translation Retargeting settings to the Epic suggested. Animation for the root, Animation Scaled for the pelvis (this is my retarget root) and Skeleton for the rest of the bones.

I’ve uploaded two pics to illustrate the issue. One with the character using a Manny run animation with correct scaling and the other is the Mixamo animation with incorrect scaling.

Does anyone have any ideas?