My reduced (compare at) prices aren't showing on items with variants

[HeatherPowell]

Hi,

I'm trying to implement a black friday sale but my lower prices aren't showing up on items with more than 1 variant... 

https://organisemymakeup.co.uk/collections/black-friday-cyber-monday-offers

Please advise?

[HeatherPowell]

ADDITION: It shows on the product page but not the colection page