Icecrusher causes bugs with objects such as causing a stationary platform to jitter

[CeIestiaI]

SuperTux version 0.6.3:|

Expected behavior:| Icecrusher moves down from the platform directly above it instead of causing jitter, and makes the trampolines clip through the bricks and break the bricks then comes down to hit tux.

Actual behavior Icecrusher makes the trampolines almost clip fully through the bricks but instead the trampolines repeat the same cycle of teleporting back up and going down and clipping along with jittering. Icecrusher also causes itself and stationary platform to move and jitter, along with freezing/stopping its animation. The stationary platform appears to have gone from being stationary to nonstationary. When Tux is bouncing on the trampolines, it speeds up the jitter of both the stationary platform and the icecrusher, which is somewhat noticeable in the video below.

Steps to reproduce actual behavior:| Recreate/reproduce the whole thing in the video below, and use ghost mode to go over to the bricks then backflip beside the icecrusher or go under and past the icecrusher, or however you want to do it.

Additional debugging information:|

https://user-images.githubusercontent.com/83178674/159141013-8b29c07c-b184-42ae-8686-637c55e689cf.mp4