yeah, that is why I thought it would be tricky. I myself don’t usually catch where things initially spawn often enough, but in the recent alphas they have been spawning in a select few locations… So easy for myself to know where they did.
They don’t usually spawn in the FOG, at least in my experience, unless it is a camp; and when that happened in the prior A17 build I think 3002 it was a camp of kobolds and the small circle around their camp unveiled the fog, even though I have not been there yet. Then again I had no worries because that camp spawned in a spot in which they could not get to me.
If the area discovered is small(NON-FOG territory), then yes it would be possible for enemies to spawn within it.
I don’t usually see the last bit happening, because in the beginning of every map I play I unveil a large portion of the FOG all around me… I do it by moving certain items to my town, like the silkweed, bushes, and other plants, as well selective tree cutting. I like to give large areas in which enemies could spawn.
If any of that has changed recently, I have no clue, but from what I can tell the system for spawning has changed little; and mainly has had a few tweaks and bug fixes.
One thing is for certain if this is a constant thing then yeah, I see that as a problem… Things should be despawning that quick all the time. However as long as you still get fights, I believe it is fine; still something to keep an eye out for.