Camera Snapping Problem

I don’t think there is any point sending files, I mean it is freshly default project and it works fine.
Hmm… Is it possible that you’ve changed bDoCollisionTest in code, but it’s getting overwritten in BP character settings?

As for behavior itself - it works like expected, this snapping designed for 3rd person games, not isometric. Are you sure you need this? This behavior is basically “bug” with that “isometric” perspective, it’s even turned off by default in TopDown template.