Droped items can only be seen when facing south.

Put the summary of the bug you're having here

*I expected to see the dropped items when they were dropped by mobs from any angle."

• I couldn't see the drops until I circled around them to face south..:*

Steps to Reproduce:
1. Drop any 2D item on the ground, it doesn't matter how it's dropped (Killing mobs, Firing dispensers, Dropping the items yourself, est.)"

2. "Face any direction other than south while still in front of the item. (Look at the dropped item from east, west, and north.)"