Blind Spots

[Shtopit]

Is it just my impression, or are there some tiles near walls that are visible, but the eventual monster on them is out of LOS? Or is it just an impression due to variable speed, so that a moving monster might not be in the tile one would expect?

[Gerad]

There's no separation between tiles and monsters as far as line-of-sight goes. If you can see a tile, you can see any visible monster on it. If you have SInv and you see an empty tile, there's no monster there.

Maybe your expectation of "there should be a monster there" is wrong; it didn't get to the tile you expected due to a movement quirk of some kind.