Roof tile scratched?

Hey,

what do you think about the marked spots in the picture? Are those scratched areas on the roof tiles? Because on the other side of the roof there are no such noticeable spots.

Thanks & regards

Looks more like dirt to me...

Hm, considering it has rained more than once since the roof tiles were laid, nothing else has moved... meaning it hasn’t been washed away.

Isn't there still scaffolding in front? Taking a close look once wouldn't hurt... but I definitely wouldn't make any assumptions based on these photos

I think that will be ignored

Go onto the scaffold?!