Suspicious Sand item spawn animation is broken

Summary:
Suspicious Sand item spawn animation is broken. Items sometimes do not appear from the sand, and when they appear, they flash.

Steps to reproduce:

1. Find the generated Suspicious Sand.
2. Brush the Suspicious Sand.

Observed results:
The Suspicious Sand item is sometimes invisible or flashing before spawning.

Expected results:
Depending on the stage of Suspicious Sand, the item will be visible and will not flash.