I want to report a bug related to the observer behavior. i put this screenshot of my world of how to recreate the bug. In a nutshell: when you power with an another observer a sticky piston that has an observer attached to it, that faces the same direction as the piston, the observer powers only the repeaters and other redstone componentsindipendently of where they are (but still in the same redstone line) when the piston retracts the observer.

Here is a screenshot of how to recreate it.