Modify Unreal animation in Blender

I’m very newbie to Unreal, so maybe this is very noob question

I try modify animation from UE5 assets in Blender, however after exporting the assets to fbx i have encountered some issues

  • The file is opened in Blender, but only skeleton and animation, without mesh
  • If i checked ‘Export Preview Mesh’ when exporting, there is mesh when opened but no animations or actions

Any help would be great
and sorry for my english