Flag preview disappears in "Creating a Team"

[Echiko]

Hello, sorry to bother you, but I noticed a problem.
During "create a team", I wanted to see my new flag.
Now it seems I cannot see ANY of the flags I have. I cannot even see the default ones.
Does anyone know what it's missing?

I am using steam and I have already convalidated the files.

[Echiko]

Nevermind, I replaced the new default folder with the old one, thanks anyway