I've been playing bedrock since 2013. and when beta's released I'll always download them and experience the update sooner and beta is for finding bugs to get fixed and i think this is one of them
on the most recent release of Minecraft bedrock beta 1.16.2 scull sensors don't register piston movements and trapdoors and other noisy stuff idk if this is intentional or just a bug waiting to get fixed since its the early part of beta and still far away from the full release i hope this gets fixed that sculk sensors register pistons trapdoors doors etc