Slabs on slabs can't be placed

Is the slab you are trying to place, the same type of slab you are clicking on? And does it not place, when the slab fills the 1 same block (1/2 slab + 1/2 slab, like ground level), or when you place it to form a 'new block'

It's a duplicate of MCPE-44780

It's the same type of slab. If you merge this bug with MCPE-44780, then add that the problem is also with snow layers.