I have a distinct need for vertically moving platforms.
However, when moving a platform up using bullet movement, the character jiggles and reacts as if it is periodically lifting off the platform, then falling back to it. This obviously isn't acceptable.
I did a quick search on this forum and found a topic from February that said it used to work right and needed fixed in a new version, but here we are in June and if this is the issue then it's still there. I'm not sure, though, so that's why I haven't gone running off to the bug tracker.