When creating a custom property utilizing the misc. CSS dialog within any style property (such as secondaryContent) that has a URL and you use a preceding and trailing quote around the source path such as:
the system will add preceding and trailing slashes (/) that increase in number between the quotes with each page refresh such as:
If I remove the quote in the path, this does not occur and the rule is still executed.
font-family: Constantia; src: url('@imagePath/xenforo/style/constantb.ttf');
font-family: Constantia; src: url('/////////////@imagePath/xenforo/style/constantb.ttf/////////////');