Pixelation/Ghosting issues on SOME Netflix titles

I’m in the UK using the UK Netflix with firmware 1.08.17. I have not noticed this issue until upgrading to the latest firmware. Tonight I watched the opening credits to Dead Presidents, and there were several points during the burning of the money where the picture was blocking severely and showing incorrect colours. I then switched to the film Zulu and the same was happening at the start of the film (while the letter is being shown on the screen, while panning across the dead bodies, when the Zulu warrior picks up the gun, even when the ‘Zulu’ title appears on the screen). 

Tried again this evening, and whereas before the glitches were reproducible every time the above 2 intros now play without any issues. Don’t know whether the recent f/w update fixed this or whether Netflix fixed something.