When the game came out, I had used Imoen and her shadowing skills to spy out territory far ahead of the main body. But appears less useful in this version as groups of monsters don't spawn until a visible member appears in that area. Programmed groups are there--- Orge Camp and alike. But the random groups seem to sometimes go missing when Imoen walks by. Example. Ulcaster map. No Skeletons as Imoen walks by but as the main group comes up, a group of skeleton with darts will be there attacking. Doesn't always happen this way, but enough to where I have changed my tactics.
It is something to do with BG1's Gog version being slow on populating maps or is it my poor memory of the original game.
Edit BG1 Original

The game quite randomly spawns enemies on most maps, but it never does so in the field of view of your characters. Enemies appear in the fog of war only. If you have enemies suddenly appearing in your field of view, then something isn't right (and only then).

Two sets of monsters have appeared when I was waylaid. One group attacks and then a second group shows up. Once it was a group of Hobgoblins with bows. I lost two players. But I figured that was natural.
What I meant with Spawning. She goes through an area. Then I call up the rest behind her and the my main group starts to move into the area and quite a few monsters. As if her being Shadowed kept the monsters from spawning.
It actually is okay since I use her now as close flanking which has been better. But I was curious if the Gog version changes somethings.
Thanks for the answer

As for being waylaid: enemies will respawn after a certain period of time, even in the field of view. They may disappear if they're left in the fog of war.

Normal locations: enemies spawn as you enter the area, or reload the game, but only in the fog of war. Personally, I can't remember a situation (without reloading), where previously the area was empty, but later on had enemies. I do however have played in a way to limit enemies spawning: Saving the game as I'm about to *leave* the previous location (at the edge of it). This is the only save that I have for the next location and I explore it without saving/reloading (adds a bit of a challenge) and there should be no enemies respawning after being killed once (if they have spawned).

For the record, beside random encounter maps, all maps have pre-placed actors, including monsters, while *some* have random or scripted spawns.

Well, something about shadow (in my case Imoen) keeps certain hotspots from spawning monsters. But as I said. I changed my ways. But per-programmed groups ("hahahaha, that was a stinker") are where they should be. But that may be the way it was from the get-go.