I have notice a issue when trying to change profile settings or viewing a stats of a speedrun and when that happens, all the buttons text disappears, you can’t change your profile picture in the profile settings and the most important thing about the stats of a speedrun is missing. Can anyone explain this?
Update: the leaderbroad text disappears after leaving a speedrun making this the worst bug in Speedrun.coms history.
Another Update: It seems to work fine when logged out, but it doesn’t when logged in.

There's a bug report thread: https://www.speedrun.com/the_site/thread/onfz6 , which it seems you've already noticed.

More info (especially screenshots) would help.