I have a student version of CC. I tried to do a Mac update and 3 different times the update screen just does the blue wheel clock. I restarted, I logged out and logged in. Tried to read for solutions, tried to delete apps and reinstall them. 100% stuck now.
uninstall everything cc
restart your computer
reinstall the cc desktop app, https://creative.adobe.com/products/creative-cloud
use the desktop app to install your cc programs and updates.
It was a long day but in the end everything is updated and working like a champ. Thanks !!