Minified CSS not loading from some locations

My site https://fondamenta.se doesn’t load a CSS file properly from some locations, specifically North of Europe. Site seems to load fine from other locations. With developer mode switched on the site loads perfectly.

When inspecting the site in Chrome I can see that one specific CSS file is not loading properly from my location:

The site seems to load perfectly from many locations. The Cloudflare speed test also seems good:

What could be the cause of this error?