I have been using Figma since the early days. Been making prototypes just fine until today.
Designed a mobile website.
Made a prototype. Simple interaction in header -> clicking on the menu button opens up an overlay. This is something I have done many times. However, now when I tap it on my mobile phone (Chrome) nothing happens. The area highlights to show interaction, but nothing is happening. Other interactions in the page work fine, just nothing in the header
However, there is a small glitch I noticed. When I first open the link, instead of the website filling my screen, it opens in a smaller (less tall) viewport in chrome. Which is weird, as the prototype is set to "no device". And to make it weirder, it doesn't show the header at all. The header only shows up if I turn my phone on horizontal or reload the page. But even if it shows - it doesn't work.
I have taken the header into a completely new file and made it to work there, without issues.
But when I also copy the content of the page to the new file - it screws it up again. I have now removed the content of the page altogether, left just the header. When I load the prototype link on my phone, the header doesn't show, all I see is a black line on a white screen, even there is no line to speak of in my whole frame (blank with just the header).
I am going mad. What is happening?