Unfortunately there still isn’t any player logging in that file but I can see that you do have it switched on for 2 displays.
This can only mean that they didn’t connect at all during your 30 minute log window.
If I can suggest that you turn OFF the overall CMS logging in settings, and leave the display auditing switched ON, and then watch the players have connected at least several times before collecting the file.
You can see the logs directly to ensure they have been collected, go to the Advanced -> Log page, and in the filter set the channel to XMDS:
I hope that makes sense?
To be honest I expected them to be connecting very frequently to generate that much bandwidth usage, so I am a little confused.