The dropdown button and refresh button are formatted off the page inside of the JOB menu inside of a SQL TASK. I use this to trigger all of my SQL Agent Jobs instead of having them spread out on several servers.
This is not affecting the Stored Procedure menu of the SQL TASK. The buttons are unavailable on existing tasks AND new tasks. I never had this happen until the 9.6.0.
I have tried various screen resolutions, maximized window, etc. no luck.