Issus with DVR 17 and ATEM Mini ISO

The ATEM Mini ISO makes the drp file, but I don't understand any of it, honestly.

First, the program output is not included to the project, neither the audio files. I don't think it's the DVR issue as the project file doesn't have those entries at all.

But another issue that for the MP4 files for camera outputs, DVR doesn't get any audio. I can play those files using the media played on the same machine and the audio is there. Why DVR doesn't pick up the audio from those files? Doesn't think whole setup suppose to work out of the box? If I drop audio files (which are also available separately in the same project folder), everything seem to align. I still don't understand why those video files, which have the audio, are totally silent in Resolve?

I believe you're supposed to use the program audio, not each camera's audio. The drp file probably gave you a timeline with program audio and a multicam with all cams synced to the program audio. You then "redo" the camera takes, add transitions, effects, text, etc.