Side-bar icons don't show

[ricar2ce]

when I run the example, the icons in the sidebar and other examples are not shown, I realized that they are the material-icons, when using the md-icon component, some help please
Thanks in advance

[dragosct]

Hi, @ricar2ce! Thank you for using our products. Please show us an example or give us the link to your project, because in our part everything it's working fine.

Regards,
Dragos

[ricar2ce]

thanks for your attention, I discovered the problem, it was a conflict between my firewall and google material icons, sorry for the inconvenience.