Okay,
So sometimes, when I switch to VFR in my HPX370 or 3700, it will play back the thumbnail in slo mo or fast mo, whichever I choose to do, but yesterday, I put my 370 in 720 with VFR set to ON in the scene file, and 1080 in the 3700 with VFR set to ON as well, but playback was in normal speed. Same thing happened to me with some other footage that I shot, but I had a high shutter speed, and it was 1080 30p instead for some reason, but it looked good when I slowed it down. I don’t understand why I couldn’t get slo mo playback in the camera this last time though.