Describe the bug

Please describe the issue in as much detail as possible. Also mention the version of the mod you're running, if it's not the newest. In the case of a crash, please attach a crash log.
Version: 1.7.10 1.0.27_X4152
When I was making a rbmk design for my survival world, the coated pipes won't feed water to steam channels.

Oh yeah, the coated pipes are broken.