Thnx I was running 3.5.2 so I will test it in 3.6.2 when I have some time.We fixed something in 3.6.2 about it if I'm not wrong. Which version are you running ?
Sometimes this box will uncheck itself if you make changes or update the scene.open the cue inspector, select your media (within the selected scene), select the "restart" attribute, then check the "value box" on the right
I still have te same issue with a black magic capture card.Sorry for the late answer. We fixed this issue in 3.2.