Why is the Freestyle Script font not displaying on mobile?

[PWS1]

I have personalized text boxes on my products so the font of the text entered will match whatever font is selected from the drop down list.  All of my custom fonts work perfectly on both desktops and mobile except for one.  "Freestyle Script" works fine on desktops, but it does not change the text to the correct font on any mobile browsers.  The font files are in my "Asset" folder, so any browser should be able to load the font.

Any ideas why just this one font doesn't work?  Here's a sample product page: https://www.palmettowoodshop.com/products/kershaw-scallion-1620ol-personalized-pocket-knife

The photo on the left is from a PC desktop browser and is correct.  The photo on the right is from a mobile browser and is incorrect.

This is from a desktop and is the correct font.This is from a mobile browser and is not the correct font.

[MOISCHKOWITZ]

I don't know why but it is an issue with Safari and Firefox. Tried it on my machine with Safari and FF and it would not render either.