[1.8 BREAKING] Spiders in Candyworld don't move

Verification Build: 1.8.0.21

Partner Rank: 2

Summary:
Spiders are supposed to move in this content except when in the throne room of chapter 1. But now they never move.

Impact:

Completely useless and confusing enemy in Candyworld. This also messes with our difficulty balancing.

 

Repro Steps:

1. Download A Nightmare in Candyworld from Store
2. Create a world and turn on cheats.
3. /summon spider
4. Observe the bug

Observed Results: 

Spider does not move

Expected Results: 
Spider attacks you and moves.

Screenshots/Videos attached: 
No

 NOTES: This does not occur in 1.9.0 beta