I have a similar problem with InDesign CC 14.0.3 for macOS Mojave version 10.14.6. I downloaded Oswald from Google Fonts with 6 weights, but my .indd files only shows one weight as "Regular", but is actually Light. Not sure if it's a problem with the .ttf files or with the program. I've tried the same on another mac and had not problem at all...
I have a similar problem with InDesign CC 14.0.3 for macOS Mojave version 10.14.6. I downloaded Oswald from Google Fonts with 6 weights, but my .indd files only shows one weight as "Regular", but is actually Light. Not sure if it's a problem with the .ttf files or with the program. I've tried the same on another mac and had not problem at all...