Requires GPU acceleration - Read threads no answer

I have a sequence that I'm using, both VR glow and a dragon drop transition. In the sequence I have several nests. One of the nest is inside of another nest, where I use the exact same drag-and-drop transition inside of that mess. It works. 

However, this transition is also being used in the main timeline in the exact same situation. In that situation, it is telling me that requires GPU acceleration. All of my settings as far as I know, I correct to use mercury playback. I am using VR glow inside of the nest and in the main timeline on every clip. Whatever my second instance of using the exact same transition is telling me that I need this GPU acceleration. While the one that's inside of the nest that is transitioning a clip to a nest works fine. All of the conditions are the same inside of the nest as it is on the timeline/sequence. 

Here are screenshots.