ice in your hand turns dark when walking on soulsand

Put the summary of the bug you're having here

What I expected to happen was....
nothing unusual

What actually happened was...:
the ice durned dark

Steps to Reproduce:
1. Put ice in your hotbar
2. place soulsand on the ground
3. srcoll till the ice is shown in your hand
4. make sure you are in first person view
5. be in creative mode
6. walk over the soulsand