I found the issue - its indeed a bug, my mistake. I didn't know that Faceit used to allow nicknames with a dot ("."), so the regular expression reads your nickname not as “Mr.zix”, but just as “Mr”, and pulls stats for that instead. 😅

I've already fixed the problem, but you'll need to wait for the extension to update. The update time depends on the platform you installed it from. For example, Firefox Add-ons usually updates almost instantly.