Versions

Betweenlands version:

3.3.0

Forge version:

14.23.1.2600

Singleplayer or Multiplayer:

Single

Installed mods:

Albedo 0.1.3
Dynamic Surroundings v3.4.9.3 (test version)
BoP 7.0.0
TaN 3.0.0
JEI 4.8.5.146

Description of the problem

How to reproduce:

1. Stand on solid block, and then walk toward a rubber block.
2. Stop at the block transition. You should experience the rapid bouncing.

Expected result:

No rapid spastic bouncing.

Actual result:

At the block edge the player Y will start bouncing up and down rapidly by a very small amount. If you continue walking into the rubber block the bouncing will continue. If you then move to a solid block it will stop. Interesting thing is if you stand on a rubber block, and then walk onto a solid block the problem does not happen.

I can't see the Y level in the coordinates changing at all. If you're referring to the visual effect of rapid bouncing, that seems to be a vanilla issue with slime blocks (which of course, rubber blocks are just a copy of).

Just checked the Vanilla slime block and it does exhibit the same behavior. You can go ahead and close this issue out if you need. I will chase the issue down in the vanilla code. Thanks!