Why is a transfer from account 1 to account 2 being shown on the Balance sheet transaction report for account 1 as two identical transactions?

Hello anthony-decodeck,

It's great to have you connect with us in the Community. Rest assured, I'll be glad to share more info and help point you towards the right direction in order for you to continue using QuickBooks with peace of mind. 

In order to learn more about how the transactions were recorded, I recommend opening both transactions from the report. Opening the transactions will allow you to have a detailed view of how the transaction was recorded. This gives you an idea of what happened and how you can correct that on your account. For reference, here's a helpful article that shows you how to: Transfer funds between accounts. 

Let me know if this helps by leaving a comment below. I'll be one message away in case you need anything else.