Hi,

I tried to build a Water Tank but at the first try nothing happened by right clicking it.
Then I broke some blocks of the structure, I placed them again and I right clicked and I got a crash that occurs every time I try to play on the world.

I'm using Railcraft on development environment (GitHub, mc-1.12.2).

Here's the crash report: crash-2018-11-03_11.12.34-server.txt

Thank you.
Axelandre