Have Alolan Eggies disappeared?

Is anyone still seeing Alolan Exeggs? It is late afternoon in Asia and I have not seen a single Alolan egg today ... they were everywhere yesterday. Weather here has not changed (as if that is an issue .. not!) still cloudy in Bangkok all the time (even though it is usually sunny and blisteringly hot!!). Hard to imagine that Niantic would only release them for a few days, but who knows.