fontawesome problem?

flarum can not get some of the tag icons. for example https://fontawesome.com/icons/computer-classic?s=solid this icon can not be displayed by flarum but this one https://fontawesome.com/icons/memory?s=solid is being displayed.

what may be the problem?

murdocklawless whats icon are u try to using?

murdocklawless it's a pro icon.

datlechin fas fa-solid fa-computer-classic is not being displayed.

luceos understood.