Padding Issue on Portfolio pages

I’m having a strange issue with some of my portfolio pages.
All the pages have been made the same way but for some reason, some of them start lower down the page (screengrab attached).
The only thing that has been changed on the these pages is to change h1 head size but all the pages have the same instruction.

http://snippi.com/s/7muzps3

I’ve tried making the pages that seem to have this strange padding issues from scratch but It still happens over and over again.

https://imgur.com/a/daIFABW

Have a look at all the pages from the top row to see what I mean – the Anchor Uno one moves down?

Portfolio

Any ideas?

Ticket