Heroglyphs instead of icons, error message in browser console

Hello,

A user in our self-hosted organization sees only heroglyphs instead of icons and gets a long error message in the browser console.
Often the vault is also not loaded, which means that in the left navigation and in the right content only a rotating circle is visible.
However, all other organization users do not have this problem.

Does anyone know what this could be or how to fix the problem?

Greetings

Browser: Google Chrome 92.0.4515.131
Bitwarden Server: 1.41.5
Bitwarden Web: 2.21.1
Browser log: https://pastebin.com/J21Ffi8K
Censored Screenshot:

Hmm, is something blocking the FontAwesome JS/CSS from loading? Do they have any sort of extension that could be interfering with it?

The only enabled extension is Browser Content Redirection from Citrix.
I could not see any other failed queries in Chrome’s network tab.