I\'ve installed Material for angular,
I\'ve imported on my app module MatIconModule (with import { MatIconModule } from \'@angular/material/icon\';
)
If you have overwritten some existing Angular Material styling or any other styling that somehow affects the icon, it may cause an issue. Move the icon code outside of any styling and test.
For me it was font-variant: small-caps;
So I just moved it to the child element. Below is part of Angular Material grid.
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{{item['title']}}