Question / Help audio and video sync issues with atem switcher and obs

[que4]

hello, so i have a pc connected to a black magic atem television switcher, along with other cams and another pc, all audio coming in from a midas m32 to the black magic, i have an hdmi cable going from the pc to the switcher, i am using obs full screen projector option to get what ever i am doing in obs to the atem, as i have other capture cards in the pc's for other cams to do multiple green screen scenes, but there is video sync issues, almost like the video is not getting to the atem fast enough, when i play a youtube videos its fine in the desktop monitor, but the feed to the atem is out of sync, both pc's are doing this. also the cams connected directly to the atem are perfectly fine no sync issues, and direction would help