Strange DOM Bug with ion-content

I have a project that seems to have a DOM glitch and I have no experience on how to even debug this… Basically, after either tapping on the navbar or opening and closing the menu (not consistent so I can’t figure out the exact cause), the ion-content is stuck and can’t be scrolled - I’ve only found this on iOS safari iphoneX. Yet when I look at developer tools, all of the elements, when highlighted, are moving exactly as they should be… it’s like the DOM took a snapshot and then forgot to update the screen. And then randomly it will come back to life after a few seconds of tapping it.

Any ideas on how to debug this?

Dev project is hosted at