Agreed, or even better...put it back to what it was. It was fine before. Don't even know why this was changed. It is literally impossible to place a single slab now
This applies to xbox one too. Cant place single slabs on ceilings anymore due to over fast placement. Always places at least two slabs. Whilst it may not be a bug, it definitely isn't working as intended
I don't have a screen shot, but the seed was Keyfort