Problem: So I updated Adobe Cloud and my icon under "favourites" was missing. I Googled a lot on this one and found some complex explanations. I decided to try this myself and found a simple 3 step fix. 

Step 1: Search “users”

Step 2 - Select your drive folder. Mine is the one with the house icon. 

Step 3 - Click and drag the icon into the side bar and your done!

If this helped please drop a like and comment.