When running over any type of pressure plate, It won't stay down as long as it should. It sometimes doesn't happen, and sometimes does, it depends on how you step on it. Especially when placing pressure plates next to stairs, then running up them. This breaks a lot of redstone doors, and it can slam the doors in your face!

Steps to reproduce:

• place any type of pressure plate.
• put any type of redstone tool next to the pressure plate.
• then, put stairs down facing the pressure plate.
• notice when walking over the plate and onto the stairs, the redstone tool doesn't stay on as long as it should.