F**kin fonts deactivating mid work

Anyone else have the issue of Adobe Fonts they are using just suddenly deciding they're no longer there?

I've had this both in After Effects and twice today in InDesign. I'll be using Proxima Nova and suddenly it'll say the font isn't installed. The creative cloud app thinks it's installed. Tried removing and reinstalling and the CC app just spins for ever.

I pay too much for such terrible service from Adobe - the fonts should be a simple part of the software.