How to Use HumanGen Blender Export to Unreal 5.4

So, my problem involves a number of issues:

  1. I have a problem with retargeting the IK animations because the names of the bones are different.

  2. When it starts to recompile something, the character changes size when I export the animations to the HumanGen character.

  3. The character sways oddly.

For the character, I export it directly from Blender to Unreal and use an animation pack from the marketplace (MCO Mocap Basics). If anyone has information, I would be eternally grateful. If there are any video references or topics that address this subject, please share them because I haven’t found anything. A big thank you!