Premiere pro glitches during playback and export - ysla

[tinashe0D4D]

Hey for the past couple of weeks i havent been able to use my premiere pro because when trying to edit the footage i get stuttery glitches in the playback monitor. The raw footage plays pefectly fine in the reference monitor but when i put it into the timeline the playback montor displays glitches. I thought this was only during playback so i tried exporting the video and the glitches still appeared in the export, i have tried everything from 

deleting the media cache

creating a proxy

downgrading to an earlier version of premiere pro

using media encoder to change the format to H.264 aswell as DNxHD

but none of these works. 

please check the images below and watch the video too. Thank you for your help

[Kevin-Monahan]

The the Apple Menu > About this Computer, so we can have more info, please, Tina. Info on your camera and source footage would also be helpful.

Thanks,
Kevin

[tinashe0D4D]

[tinashe0D4D]

With regards to the camera, this only happens when i put in footage forn any canon or nikon dslr and sony a7s iii. However when i put in blackmagic / panasonic / red footage i dont get these gitters