Abandoned cart not evaluating correctly

Hi,

we have recently set up an abandoned cart campaign for another web (we have it set up for 3 other countries) exactly as the previous ones. However, in the drafted emails I can see that it is not being evaluated correctly - because it is sending the cart even though a contact has perfomed the purchase (e.g. event cart was sent at 11:44 am and purchase event was sent at 11:48). Two hours later, this contact was drafted an abandoned cart email. 

The trigger is the event cart - then “wait for 2” hours - then true / false branch based on if the contact made a purchase or no and then sending the email. 

The true / false condition is based on this (screenshot attached). And when i checked some contacts their last_purchase_date attribute was bigger than the trigger event attribute sent_at so they should not have received the abandoned cart email.

Since the customers, had a cart and then made a purchase the drafted emails look like this (attached screenshot) and no products are obviously displayed because there is none in the cart. 

I would appreciate any help, maybe there is some small detail I am missing, even though it is set up as the other ones and those work fine. :-)

Thank you in advance.