The following is a description of what happens in a 1.10.2 test pack:

What I expect:

Chiseled Pillar Blocks (Andesite Pillar, LimeSone Pillar, Light Blue Concrete Pillar, ect.) can be placed horizontally like the vanilla pillars

What really happens:

Chiseled pillar blocks always place vertically.

Mods in test pack:

CTM 1.10.2-0.2.2.24, Chisel 1.10.2-0.0.14.33,Minecraft Forge 12.18.3.2477, Minecraft 1.10.2.