I found that in the new snapshot 19w41a, adult Husks have black boxes replacing their heads. However, the baby Husks do not have this issue. 

What I expected to happen was:
I know it's a snapshot and it's buggy, but I did expect to see heads on Husks.

What actually happened was:
The adult Husks had no heads, instead just same-sized black boxes. The baby Husks do. 

Steps to Reproduce:
When a adult Husk spawns in (in every situation) they simply have black heads. This glitch occurs in any biome, in any light level, in water.