Crossbow held by Pillagers are invisible

Summary
When you spawn some pillager, the crossbow they hold is invisible. This is noticeable when you switch to survival mode, and they're attacking you by shooting arrows with the crossbow.

Step to Reproduce
1. Spawn some Pillagers.

Expected Result
Crossbow renders properly.

Observed Result
Crossbow renders invisible on pillagers.

Original Description
Marauders appear without crossbows