I am just finding this Thread. I am also having the same reoccurring issue with duplicate transactions, and have been for months.   

I agree this issue should have been addressed with more detail, as well as solved since November.

What am I paying for?

I refuse to own Accounting software that does not work.

Provide a detailed solution or anticipated date of the solution.

The following accounting software all offer Sign-Up discounts.  

1. Zoho Books

2.Xero

3. Wave

4. Officewise

5. Billy