Snap to grid not snapping to grid

I’m trying to make a simple block building game but I’m having trouble getting snap to grid to work like I want it. Instead of snapping to the game grid it’s snapping half way between on all axis, like in the picture below. I’m using Vector Snapped to Grid with a grid size of 100 in my blueprint. In the line trace, I’m using Out Hit Trace End as that appears to give the best placement apart from this one issue.

How can I get my blocks to snap to the actual grid instead?

If the pivot is in the center of the cube, it could be snapping to this point

Very probable, that means you have to Add some value at the end of the calculation that snaps to grid (half of the box length) to have it fixed to your wished position