This is what I did, but the problem is, it is only working on 3 sides, when I place the block to the top of my block, It snaps perfectly, when I place it to the right and forward ways (I guess they are x and y.) It works, but when I try to place it the under or (-x,-y,-z) It places the block to the inside of block, so it looks nothing happened but it actually placed. Really don’t understand why, if you don’t understand what I am saying, UE4: Spitballing - Minecraft Block placement. - YouTube watch this and go minute 9. You will se exactly what I am talking about.
How are you doing a line trace to ‘under’ your block?
It’s just line traces to forward of camera.
With under, I mean is below of an object. Watch the video there is the same problem