Random uncontrollable movements

Hi all, 

I'm having an issue whilst playing BF6 where during a match my character will do random movements, such as run left or right or forwards etc for approx 2-3 seconds. This will happen multiple times throughout a match and when it's happening I can't do anything to stop / interrupt it, but everything around me is moving as normal and it has led to my death multiple times because I can't shoot back / take cover. 

I've tried pretty much everything I can think of, including a new keyboard, different USB slots, new ethernet net cables, new router, everything possible updated, tried wifi, verified game files, full reinstall and nothing has fixed it. I have decent internet running at 500/50mbps so I don't believe it's ISP related.  My PC is decent enough as well, everything is above the recommended requirements and I've also dropped all graphics settings / overlays etc.

Has anyone else experienced this or have a solution? I feel like it's only happened since the redsec release update. SUPER FRUSTRATING.