So I just bought the upgrade SPECIFICALLY so I can use the projects. I created a project, added an invoice that has a partial payment, added another estimate and then tried to add another invoice that is tied to the estimate. It keeps trying to clear everything on that invoice. Please note - that invoice was sent to the customer for deposit. It is different parts of the same project. So why is this happening? Why is there no fix?

To be clear: 

Invoice 1005 was able to be moved over.

Payment on that invoice (partial payment) was also moved over.

Estimate 2022-128 was moved over

Invoice 1007 created FROM Estimate 2022-128 that has NO PAYMENTS will not move without becoming a zero. 

What the hell? Why would i pay all this extra money for this headache? I'm very frustrated