The marker deflection is weird!
This big spot of light green colour is green #1 - no shot from there (rule 25-3) :)
Furtheron, there is an OOB on the map in the area above the blue marker on this pic.
IIRC there are invisible OOB limits on the other (double) STA greens, too. Today, I tend to see "no pictures taken" as the main reason. Same applies in some other peripheral regions, remember OLY #16, the wood on left hand close to the tee?
BTW, the mini-map indicating OOB is only a general indication but not a law. There are a few exemptions, e.g. BPB #6, where the ball is playable "outside the ropes" in the knee of the dogleg.