Ok first of all I moved your post to a new thread to make sure we split different questions into different threads.... for easier access.
As for that issue, I believe it could be that there is an issue with your integration, what email integration did you use?
Also this part caught my attention:
If the purchase is showing in your SALES tab, then to which contact it's assigned to?!! isn't that a contact itself!
And can you please share the link to your funnel with me
hope that helps!