Page not fully loading sometimes

I am encountering a strange issue where when I load a new page, it only shows a part of it. It looks almost like there is some sort of container div that failed to resize, and is covering half of the content (I can sometimes see half of a button or the text). This only happens sometimes, and I cannot tell why. If I navigate through the site, it randomly happens and on random pages.

Any hints as to what might be causing this? Perhaps something with the rendering system in Ionic/Angular?

Hmm, any chance you can provide a codepen or github link? Kind of hard to find out the issue with out seeing any code