Steel Scaffolding Slab not recognised by the manual

[StackDaWheat]

Hi, when building the distillation tower, I am building with the updated steel scaffolding slabs around the tower. However when I try to form the structure with the engineers hammer, it doesn't work. Also when I look in the engineers manual, it does not recognise when I have the steel scaffold slabs in my inventory.

[davisxp]

I have the same issue however the multi block projector is recognising the top two scaffolding layers but the bottom layer is not recognised and is outlined by a red border

[mnsnownutt]

There are 2 types and they need to have a steel grate top on them to work.

[rollhax]

There are indeed 2 of the slabs with the same name... ( i builded the disstilation tower yesterday was an interesting trip to see i had the wrong ones.... ).
Would recommend to rename the steel scaffolding grated slab to something unique instead off haveing 2 the same named ones.