I have exactly the same adventure and problem with the same set ... I have HFR and RAW installed on FS5 and turned on everything as shown by Atomos on the instructions on the movie ... RAW 2K in 240 fps works, and RAW 4K in 120 fps already Unfortunately, not ... The colored stripes on the Atomos show up, the orientation of the view from top to bottom changes, the recording lasts only a few seconds and saves only 60 fps ... sdi cables have good produced in Japan under 12G bought in a good store for the production of television . Maybe it's a fault that we're using SanDisk ULTRA II 960GB SSD instead of EXTREME PRO 960GB ??? Have you already explained your friend what was the reason, you know something more? Thanks for the help Bart !