BuildCraft version: buildcraft-all-7.99.24.1
Forge version: 1.12.2-14.23.5.2838
Singleplayer or multiplayer: Singleplayer
Steps to reproduce: Single redstone engine is not working, redstone engine with other redstone engine on top of it is working, not works if place other blocks.

Also, redstone engine can`t be moved with workbench.

Redstone engines must be facing a valid receiver in order to emit power or pump normally (so a wooden item or fluid pipe, or an autoworkbench or pump).