Im glad to see I'm not the only one. Except i've been at it for over two hours, with water candle placed and held. I've gathered 9 harpy banners and 2 wyvern banners while seraching for the probe, and I'm farming in space at the outer edges of the map. I can understand that a lot of people were complaining about probes appearing during bosses or events, but that was addressed with this patch. Furthermore, the places in which it could spawn were reduced. I'm not sure how much of it is just bad RNG on my part, but having killed nearly 500 harpies and 100 wyverns without a single probe spawning seems a bit much. How badly was the spawn rate nerfed, and was it really necessary, considering the no-invasion/boss spawn, and no center-spawn fixes?
At least while you're waiting for a solar eclipse pre-plantera you can do other things. I've basically nothing left to do progression-wise, and to experience the martian madness, i've little choice but to stay on the surface/space farming harpies and wyverns in the hopes of the ever-elusive martian probe to show up.
Just my QQ'ing, but it's really not entertaining to have to farm hours on end to initiate an event. Other events can at least happen naturally, whereas you have to be in the right area for probes to spawn.