Really? That's pretty bad. Maybe caused by one of the lighting rigs?
Divots? Or muddy tire tracks? Same thing as before, or something new?
It's the remnants of the tire tracks, where they cross the line - they appear to be about 2 feet long. The grass clearly hasn't recovered on those spots yet.
Those spots are where the damage was sufficient to get to the soil; although truth be told, the paths in the grass further along the line (5-10m) were still visible too.
At this point I'm reverting to calling them tire tracks.