I don't know what that is. I use the GOPro 5 black, mostly with 2.7K and framerate 50p, so also that one in my screengrab. Files grabbed from the inside memory card.
Edit. Sorry, I did not read the title of your OP so well, I thought while some have problems with "normal" GoPro files, I show here how I use those "normal" files.
From everything that I read about the Fusion it adds a lot of steps to the workflow. Some programs (Premier) can work with the footage natively in the program (with a plug-in). I might try downloading some sample footage/files and see what happens. I am considering buying the camera, but do not want to do so if it adds days to my workflow.