I got two nest messages in the grove just now and I didn't think that should be possible ._.

One, I opened a node near the golems saying the nest was South. Got excited for first cave nest.

Couldn't find it, so I wandered into the forest just in case the nests were still broken somehow... opened a chest below the captains and got another message that there was a nest to the West. I found a nest near the ents.

I have yet to find a nest South in the caves, though I'll keep looking... but I really didn't think you were supposed to be able to get two at once ._. and the message in the cave came first so I was really hoping to find one down there :\

Edit: just found the cave nest, in Demora's room. So maybe it wasn't a bug after all. But it still seems unusual.

(the more I think about this the more I think it might be meant to be possible to get a nest in each area at the same time. but obviously I can't delete this thread so)

That indeed was a bug. When I did my script changes to make the Cave Eggs spawn properly, it looks like I created a logical issue where it would fail to detect an Egg spawned in the other section. And since the spawn bonus is removed after claiming the Egg, it'd essentially allow the player to spawn 2 Nests every single time before resetting their counter which obviously is not how the mechanic is intended.

It should all be fixed now.