Level creation grid

So im currently trying to make the base level for my game with 16x16 textures, but when i try and place them they don’t fit properly into the grid, the only way i can get them to be connected is to overlap. Does anyone know how to fix this?

It might be that your Grid is not using powers of 2. That’s the only thing I can think of. Under Editor Preferences go in the Viewports and check on Use Power of Two Snap Size