This is the same experience I have had for the past month. The instructions here are invalid because you cannot access the Mint transactions page, and therefore you cannot use the filter. I have data going back to 2008 and I can't access it.
Don't bother reaching out to CK support - they are locked in some sort of time loop where they only answer your question with whatever FAQ link they have in front of them. This is an unmitigated disaster. Hopefully, the class action lawsuit is coming along well.
