If you had purchased Creative Cloud subscription .
Then first of Sign out from Creative Cloud and Sign in using Email ID using which you had purchased subscription.
Let me know if you still get Try option
For Paid subscribes it will show Install button .
For trial subscribes it will show Try button.
I allowed an adobe tech to take control of my system. He didn't resolve the problem, but he told me not to worry about it and to go ahead and install what I need.
I did. It was fully functional. Two days later, the "TRY" on the rest of the apps changed back to "INSTALL".
Just some short term glitch, I guess.