Assets fail to load

I am unable to view Sentry error for my account in website. It seems some of the assets fail to load:

Anyone else encounters similar issues?

I’ve tried Chrome and Safari on OS X. Both fail. Sometimes it recovers after a number of hard refresh tries.

Further I noticed that this issue seems worse if requesting the page from a location in Portugal, and usually ok if request is made from UK.

To me this seems to indicate issues with CDN?