Daniel Franchy

If I were to take a falling block entity and alter its velocity to 0 on a minecraft server, the client would see it rubber banding as it assumes it falls, and then is told that it's position is not where it thinks it went. Resulting in a situation where the client sees a falling block falling circa 2-3 blocks then rubber banding back to its original location. Now this isn't really a bug, as without any modifications to client or server it works as intended, but this is a roadblock in server side modifications as it close's doors to cool things that could be done with controllable block entities.

Any reason this has had no response yet?

I don't see how this duplicates 108, as this reports that the intended feature is not working correctly, while the other complains that the intended feature shouldn't be there. I just don't see how having pistons remained powered after removing ALL nearby power sources isn't a bug, unless pistons are just supposed to magically have infinite power.