Hi,
I'm having the same problem, bought my H9 today and made 5 out of my required 10 to MaxOUT before I get the message "The transaction has been flagged for manual investigation". I'm guessing it's because there's so many individual payments done one after the other. I will send an email referring to this post, along with a screenshot.
Looking forward to use this cool device, also in DJ sets.
Thanks! 🙂
