Solved
Bittrex API not loading all order history
We have been made aware of an issue with the Bittrex API, where Bittrex may not return the full order history of your account. This can mean that when you add a Bittrex account, some historical transactions may be missing.
We have submitted a support request to the Bittrex team, but unfortunately this issue is out of our control.
As a workaround, we will soon be implementing CSV imports, so that you can download your full order history manually from Bittrex, and then upload it to CryptFolio.