Giant flashing edge/cursor on Latest view

On the Latest view of one of my forums there is a flashing white edge. Is there a way to make it go away? I circled it in orange on this screenshot.

It’s a small thing but pretty annoying. It shows up when I click the left or right margin in Chrome. Any suggestions?

It doesn’t appear for me when I follow your link? Are you still experiencing this issue?

If so, does it also happen in safe mode?

It’s not happening for me now in Chrome either but it is happening in Brave. Yesterday it was the other way around. :man_shrugging:

It appears be a cursor. When the problem occurs it shows up wherever I click the pointer. Although it seems odd that there would be a giant cursor alongside the whole list of topics.

Now it’s happening for me in Chrome again.