Skeletal mesh area shrunked

Hello, I recently had a problem on a skeletal mesh and I do not know how to fix this. Watch this: "Inesquivable" [Probleme] Skeletal mesh area shrunked (03/09/2015) - YouTube I think EU4 has shrunk the skeletal mesh area compared to the normal size.

I do not know how to fix this, Thank you for your answers.