So I’m working on a camera system but I’m still learning, here I decided not to use the pawn’s control rotation and instead rotate the camera string component (attached to the rootComponent) manually, the problem comes when I turn my character around ( AddControllerYawInput(value); ) and then running that little piece of code I shared below.
The camera string component rotates but also vibrates. Link to a video of the behaviour.
Looks like what happened to me when I had temporal anti-aliasing turned on in the PP. This is the default afaik.
I’m sorry but what do you mean by PP? I’m trying to find it to check it out.
Edit: If you mean the Engine->Rendering->PostProcess settings I already changed it to FXAA or None and it’s not that 
Post process. I’m not sure how you change the default settings (I’ve never really played with it,) but you can add a post process volume to the level, make it ‘unbound’ and turn off anti-aliasing. Or at least temporal.
I tried the post process volume as you said but didn’t work, I’ll continue with more important stuff and come back later on this bug, thanks for the help!