White lines appear when scrolling down in portals
I'm getting these strange white horizontal lines that appear in a portal when scrolling down. These lines appear when I'm scrolling down in the portal. Then they disappear when I scroll back up. I've tried everything to get rid of these lines. I've tried removing all formatting from the portal and the fields contained in the portal. I cannot get rid of them. What am I missing?
Any help would be appreciated.