Add camera serial number in to Camera RAW preferences?

Hello All

I shot some images on a Fujifilm XT3 in RAW format & using an in-camera film simulation. Neither Bridge nor Photoshop recognises the resulting files. I have tried to add camera specific detail into RAW preferences, but even after clicking to ignore global settings for specific cameras, the drop down menu is greyed out. Help please! I am on a 2013 Mac running OS Catalina, and use Adobe CC with all apps up to date. Many thanks in advance for your responses.