Wrong flag displayed for Catalan (ca_ES)

Hi there,

I have a network of 2 sites, one in English, one in Catalan. The MLS works great but I do have an issue w/ the flag displayed for Catalan.

I get the Canadian flag instead of the Catalan one. I guess that there is something wrong between ca and ca_ES but I cannot point it out.

Any help?

Thanks!

https://ww.wp.xz.cn/plugins/multisite-language-switcher/