Certain things such as Javascript, Certain Images, CSS files and other static stuff are cached and served from local CDN servers that are close to you. There are CDN's all over the world. Again all static data comes from those CDN servers. If we served everything off our server the site would be dog slow. You can see all the CDN locations below. If one CDN site has issue it could cause problems. This has happened once before a few years ago, and it was a bad cache on ONE of the CDN servers.
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I am not saying that is whats happening here... still trying to figure it out. Also trying to use a VPN so I can try things from different areas of the country to see if I can replicate the issue.
I want this fixed as bad as you guys do.
The goal of running the site is to work for everyone. Not make it hard to use.
Some good news about this issue though is I have been making changes to some settings and that has raised our rating with GTMETRIX from a D to a B.
I will get it fixed.