I’ve moved this here as it’s not really related to DX, it’ll be everywhere.
I’ve spoken to the 2OOO tech & he said he has a problem with the STL & setup to the new TX at Artarmon, so he’s currently running with only L+R audio (in other words Mono) with 19kHz pilot at only 4% instead of 9-10%.
That’s why you’re only hearing mono audio & some places/radios aren’t picking up or showing the stereo pilot.
He hopes to have it fixed by early next week.