Large Print Problems - Prime

I tried to do a large hollow print (fountain) and encountered a strange problem that I have not seen on smaller prints. The print has strange vertical striations, it seemed to affect one side of the print more than the other - see the attached photos. This does not affect smaller prints. Does anyone have any ideas? Note as soon as the print got smaller the problem disappeared.

Note: my LCD touch screen is still glitching out after a short time - I tried wrapping the cable with electrical tape to reduce interference but that didn’t help.

IF this is on the edge of the screen. the tape is not covering the edge.

Ah, this may very well be the case. I will check into that. Thank you.