I don't know if this is a bug or is intentional, but whenever a piston, door, or anything that opens and closes is placed right next to, on top, or below a skulk sensor, the skulk sensor would get stuck in an infinite loop. This has not happened in the previous version (1.18.2) and has become a bit of a problem because using pistons directly on top of a skulk sensor is really the only way to make a cheap, automatic escalating staircase. The skulk sensor should only activate if the piston/door is at least 1 block away. One final note I would like to make is that if a player stands on top of it, it will cause the skulk sensor to infinitely loop (even when crouching).