Graphics glitch - occasional colourful flashes since update

Hi there

So it's possible this isn't a game issue and I'm having an aneurysm but I'm pretty sure it's the game...anyway...since the update, I've had these weird flashes in the game. It doesn't seem to have any rhyme or reason. They look like colourful camera flashes - so milliseconds in length and pink/blue/yellow (I think? They are so quick).

I have a Radeon RX 5700 XT and noticed in the hotfix today there was a 'fix with VFX on AMD graphics cards' and hoped this would fix it but it hasn't.

Is anyone else experiencing this? I would call the emergency services but I'm not seeing these things anywhere else.

Many thanks