Hello,
I searched a little and I didn't see anything related to this issue.
I purchased a few things on a shop online, and when I was about to pay, Eset opened Banking and Payment browser, everything fine till this point. I signed in with my paypal account, made the payment and paypal redirected me to the shop, but it redirected me in the Banking and Payment browser, as I was not logged in the ESET browser, the page didn't recognize me, and after waiting a few days to see if the purchase was made successfully, I had to disable Banking and Payment feature and made again the purchase.
I guess it is a known issue given the way it works, and you are working on it to improve it in future releases.
Thanks.