My Wordpress website uses google-material-icons that suddenly became not visible on browsers (Chrome, Safari, Firefox). Why? Can it have to do smth. with the Wordpress updates?
Example of css that exist in style style.css
font-family: 'Material Icons';
font-weight: normal;
font-style: normal;
font-size: 16px;
display: inline-block;
line-height: 1;
text-transform: none;
letter-spacing: normal;
word-wrap: normal;
white-space: nowrap;
direction: ltr;
-webkit-font-smoothing: antialiased;
text-rendering: optimizeLegibility;
-moz-osx-font-smoothing: grayscale;
font-feature-settings: 'liga';
content: "\E5CF";
position: absolute;
right: 0;
top: 12px;