Affects Version/s: Minecraft 15w44b, Minecraft 15w45a, Minecraft 15w46a, Minecraft 15w47a, Minecraft 15w47b, Minecraft 15w47c, Minecraft 15w49a, Minecraft 16w02a, Minecraft 16w03a, Minecraft 16w04a, Minecraft 16w05a, Minecraft 16w05b, Minecraft 16w06a
Environment:Windows 10 Build 10576, Java 8
When falling onto slime blocks wearing an Elytra, your momentum does not go down.
Steps to reproduce:
1. Make a slime block platform
2. Wear an Elytra
3. Make sure you are looking directly down
4. Teleport yourself up a few blocks (/tp @p ~ ~5 ~)
You won't ever stop bouncing. If you open F3 you'll notice you'll always be bounced up to the same coordinate.