ADS Camera not align when crouch/prone

Hello everyone, i have a little problem that i have a hard time to solve. When im standing the ADS Camera is aligned with the crosshair but if i crouch/prone the ADS Cam is a little offset and i cant seem to pinpoint the why it is happening!

Crouching

Standing

Here is my BP

I was also wondering if there is a simpler way to switch between my FPS Cam (on the player) to the ADS Cam (on Child of my Gun Base). I Tried Set View Target with Blend but the Camera end up looking the wrong way. I need help on this i have spent the whole day loocking for different way to do it. Sry for my english.