I've been using our corporate fonts (Concon and Avenir), successfully for months. Using latest updates from CC Indesign and Photoshop and Illustrator. Never any font conflict issues.

All of a sudden last month one document in Indesign stopped recognising the fonts. I've tried uninstalling, reinstalling both the fonts and the program apps. I've tried installing the fonts in Adobe folders as well as on my PC.

It's super frustrating as every time I open the document, I need to go back and correct all the fonts. It let's me resolve them by re-selecting a font for highlighted text, but doesn't save when closed.

Please help!