When you place gravel or sand on a block that isn't on the ground, it glitches out and dissapears and you dont get it back, it really sucks! This happened in the new update and I couldn't select 0.6.0.

Put the summary of the bug you're having here
When you place gravel or sand on the block that is not on the ground it glitches out and dissapears and i checked and its not in your inventory.

What I expected to happen was...:
Describe what you thought should happen here
I thought that it would fall and go on the ground, but it didn't.
What actually happened was...:
Describe what happened here
I was building my house and when I put gravel on the block that was not on the ground, it dissapeared!
Steps to Reproduce:
Put a step by step guide on how to trigger the bug here
1.Get gravel or sand
2.Put it on a block that isn't on the ground
3.The glitch happens