When using the cross fade transition between two clips, the video jumps and it seems like the program might be confused about the image stabilization of the two clips being merged. It results in a not-so-smooth looking transition.
The same issue goes for using different camera angles on two clips being merged.
Another issue that I've noticed is the loss of image stabilization when using imported data for G-metrix. I imported my Fenix3 data into the editor and I was no longer able to stabilize the video. I suppose the data used for stabilization was overwritten by importing the alternate G-metrix data.