Multiple Fonts in CFDocument in CF2018

We have a situation where we have code that works on a developer's computer (Windows 10, CF2018 Dev. Ed. (Enterprise-level functionality), plus whatever else is unique about their system), but does not work on a dev/test server (Windows Server 2019, CF2018 Standard Ed.). The specific issue is with font handling. The code uses fonts, based on a user's language preference (English, Spanish, or Chinese), and builds a PDF, using CFDocument. On the developer's computer, the logic for using this font OR that font works. On the dev/test box, it does not. This indicates to me that the code can access the fonts needed for the either/or choice on the developer's computer, but cannot access those fonts on the dev/test box. Do you have any suggestions on how to find the differences between the two systems? We have confirmed what I think are the easy things, same upgrade level, same Java version, Font Management settings, same CF Admin settings, etc. I have also looked at the system fonts on the systems, to make sure that the fonts are available in the OS. I get that, if this worked in an earlier version of CF (it did, in fact, work in CF11), but not in CF2018, I would chaulk it up to deprecated features, and have the developer recode it. However, since it runs on one system and not another, I am less inclined to do that. Any assistance or suggestions would be most appreciated.  Thanks.