Scourge invasion not always appearing in marked zones

On the world map you can see the skull icon for zones that are under attack by the scourge. But if you go to those zones they are not always under attack. In the false report zones you can find 4 little pink ground effects, where the crystals and NPCs would spawn, but there is no necropolis and no monsters spawning.

Also an issue on Bloodsail Buccaneers. Our Kalimdor invasion sites have not respawned since the initial round.

This is still happening. I was up earlier today to try and get some runes during off peak hours and had to try several zones before I found a real one. In Tanaris I found 4 sets of those little pink ground effects that show where the invasion should be, but there was nothing there.

Same thing on Westfall… im checking Winterspring while i have a friend checking Azshara
and some random guy is checking EPL for us… lots of pink effects but no necros anywhere.

since then ive learned blasted lands is working as intended… the only place so we get large groups fighting over the spawns… kinda messy

Any updates on this? It looks like all of the Kalimdor areas are bugged and not causing an invasion, even though they are marked on the map. It feels pretty bad for a limited time event to only have half the spawns it is supposed to.

Appears to be a layer issue