Can’t Hide any Blocks

I’ve been trying to hide a lineup poster for desktop and another block with the poster for tablet and mobile.

I’m not able to hide at all, no matter what I do.

I managed to hide them on my staging site:

https://staging25.lucidityfestival.com/

Notice how desktop and mobile have different poster placement?

I copied the blocks and pasted into production site page. I’ve even duplicated the blocks and deleted the copied ones.

Nothing I do is hiding the blocks. Even when I click hide from everyone.

Help!

The page I need help with: [log in to see the link]