Hard to say without seeing a file.
But I just have to wonder if you shouldn't try adding more layouts in your case. Experimentation is not fun but....
I know that I struggled hard literally up to yesterday, in fact, sent an e-mail to Daniel, Steve, and Jonathan complaining about how the tutorials, but then realized that I was not understanding the sizing part of Pinning and Sizing. It just took some experimentation to understand it and I think there could be some improvement in the tutorials with more examples and explanation.
One huge mistake I made was to try to experiment on a file with over 100 elements, that will make your head explode. Build a simple file and work it one element and one change at a time. The Safari Develop menu "Enter Responsive Design Mode" is a BIG help. You can do a lot of quick testing with it.
The relationship between Responsive and Flexible in Hype is a bit tricky to understand.
Sorry Daniel, Steve, and Jonathan , frustration got the better of me for a bit. As I have said before Hype support is the best of any app! I am looking to build the rest of my career in Hype.
Try some more layouts, upload a file. .