All Website Content disappears only when switching between 2 breakpoints

Hey guys,

When I’m changing the window size on my published page from, let’s say, desktop to tablet and then back pretty much everything what’s content disappears. Simply changing from desktop to tablet is fine.
What’s weird is, that the elements are there, but it’s completely invisible (look 4th screenshot).
It’s also my only webflow page that does that.

I don’t have a single clue on what could be responsible for this bug nor where to look for a solution to this, so I’m really looking forward to hearing from you guys…

Thanks in advance!

Here is my site Read-Only: (Webflow - Engelhardt Möbelschreinerei | Möbel mit Leidenschaft)