BSP randomly moving in location coordinates

So I noticed that whenever bsp’s rebuild, they will snap back to position in 5s.

So if I had a bsp in X(502), it will snap back to X(500).

Is this caused by one of my settings or just a bug?

Try toggling the snaps off and back on again. I’ve attempted to replicate this issue with no luck (I prototype all my levels with BSPs), any way you could provide an example via pictures or whatnot? Although I can say the simple solution would be to not place the BSP on 502, and place it on 500. If it needs to be that detailed (2 cm in game) then I would recommend a static mesh anyways.