GoPro HERO 6 & Blackmagic Intensity Shuttle – no input

Hi! Sorry if already discussed.

I am using GoPro 6 (Black) and I want to input live video to a MacBook. I have set the HDMI settings to LIVE, the video is NTSC, 720p 60 (same works with GoPro HERO4, but not with 6). And I have no input signal to the Blackmagic Media Express and/or OBS Studio (for live broadcast).

Please, advise what are the proper settings.

Thanks!

First of all,
Do you see the Shuttle in Desktop Video / Media Express as a capture device?
Do you have Siera or higher? if so. Did you fix the security policy for Desktop Video. Otherwise you will always keep a black image.