Sorry for not posting the link. It did fix itself however. If this was a temporary issue that fixed itself, could it be that something went wrong on Marketo's end that made their A...
I have a very similar issue to this problem:https://nation.marketo.com/t5/product-discussions/onsuccess-handler-to-follow-up-page-has-stopped-working/m-p/326068#M184055In this disc...