Crash in Anim Budget Allocator when adding fifth budgeted component to the scene in packaged builds when Niagara is enabled

The setup is fairly simple: Each time the button is pressed, we spawn an actor with a USkeletalMeshComponentBudgeted component whose skeletal mesh is DefaultSkeletalMesh.

When the fifth actor is added, the game crashes with this callstack:
Assertion failed: USkeletalMeshComponentBudgeted::OnCalculateSignificance().IsBound() [Link Removed] [Line: 194]

0x00007fffe0faa839 UnknownFunction []

This occurs in packaged or launched builds, but not PIE.

This crash only occurs if Niagara is enabled. 

If I click "Cook Content for Windows" in the project, the result is now an access violation.

1. Download the attached project
2. Launch TestMap (this doesn't happen in PIE) on PC
3. Click the HUD button labeled "Add a crash actor" five times
4. The game should now crash

Assertion failed: USkeletalMeshComponentBudgeted::OnCalculateSignificance().IsBound() [Link Removed] [Line: 194]

0x00007fffe0faa839 UnknownFunction []