A bit of an update for you all… So when I posed my character i had added some spheres with an emissive materail to make the eyes glow for the shot. I got sick of accidentally moving the character and the eyes not following so i made a blueprint class for the actors Character and glowing eyes. I looked at the error output and since they were placed in the BP and static mesh actors but set to movable, they were bypassed during rendering.
I suggest checking the output for errors after render (if any) and checking the mobility of the actors not being rendered. As soon ad i went in and set those static mesh’s to static (in the BP) the character not being rendered showed up instantly.
Worth a shot. Good Luck!