When you are sneaking and holding an item/block/tool, the object floats and doesn't move down with the player arm.
Look at the attached image for a sample.
Related issues
Attachments
Comments
migrated
[media]
migrated
Dupe of MC-46579
migrated
This issue is a duplicate of MC-46579. It has been linked to the original bugreport.
Please search before reporting any bugs, as it's likely that one exists already.