Hi, I'm also having the same issue with Revit 2019. The whole Enscape ribbon is greyed out and I'm unable to click any of the icons. I've switched views and the hit Esc key but I'm having no luck. Please let me know if anyone has found a solution! 
Hi, I'm also having the same issue with Revit 2019. The whole Enscape ribbon is greyed out and I'm unable to click any of the icons. I've switched views and the hit Esc key but I'm having no luck. Please let me know if anyone has found a solution!