Updated description by GoldenHelmet June 15, 2020
- Make a 1 x 1 x 1 hole.
- Drop an item in it.
- Place a dirt path block in the hole.
The item floats up above the dirt path block, as it would for any solid block.
The item stays inside the dirt path block.
Dirt Paths in MC Bedrock are not treated as a solid block in most regards, and this is likely why other bugs related to the Dirt Path exist.
I knew this because when I was destroying blocks surrounded completely by Dirt Paths then filling it with a different block without picking up the destroyed block, the dropped item wouldn't appear on the ground. It was essentially "buried" beneath the Dirt Path.
Reports of Grass still growing underneath Dirt Paths are most likely connected to this same issue.