I'm using an iPhone 5S and iOS 12.1. The version of the H9 Control app is 3.5.2.
I have the same issue when using an iPad Air 2 on iOS 12.1 and H9 Control version 3.5.2.
I wasn't connected to my H9 when I made the first screenshot but it looks exactly the same when I am (see second screenshot from iPad).
Thanks for your feedback. I have an iPhone 5S on iOS 12.1 but couldn't reproduce this problem.
Does this issue always happen? What if you go to those purchased algorithms (like UltraTap and Digital Delay) in the Store screen?