Unwanted items I cannot remove from list

In my Top Superhero shows list, I am trying to remove two "Doom Patrol 2013" listings .

However, any time I delete them, they immediately come back to the same position, regardless of whether I refresh the page or click into the list again. I have tried deleting them from both the list and the items pages.

Please help resolve this, as It could potentially be a virus.

Try creating a new section then move all the wanted items over
then delete the original section with the undesired items.