Hello, I've had a problem with the trampoline and castle blocks not allowing me to bounce. For what I know, this hasn't worked for me since vers. 6.2.0 (which I have on a server) and doesn't work with 6.3.0 (on a single-player instance). I am using multiple mods for both cases, let me know if you need any more information, this is what I could come up with for now.