Hyper pixel 4 lines on screen

Hello i have had the pixel 4 touch screen a couple of weeks and lines have started to appear. Any ideas please.

I would power down, remove it and, reattach it. If you haven’t already.
If that doesn’t help, I’d start over with a fresh install of Raspbian.
If that doesn’t fix it I’d say its a hardware issue with the Pi or the display.
Do you have another Pi to try it on?

Will try it on other pi’s and let you know. I tried all the other bits :/

i have tried 4 pi’s now. fresh installs and new sd card :(

Must be that the display has failed somehow then?

I have requested a replacement. Thanks for help

No problem, glad to have helped.