Cheers, well I am pretty sure it is thrips. So looking to put a stop to them.
As for the colouring issue, it is certainly progressing. I have not done anything for it yet as I don’t know what my next steps should be as if you take one wrong step then it can make things even more tricky.
It’s now moved to fading past the veins, I wondered if it was under feeding and it was using the leaves as food.