I've noticed that after some PS 2018 CC useage that the Rich Tooltips stop popping up. The option is enabled in preferences. Ticking that option off and on again makes no difference one they have stopped. I haven't been able to determine if this happens after a specific amount of use or time. In any event, restarting PS bring them back. I am running a Win 7 Pro 64bit OS that's fully updated. Has anyone else noted this behavior?