The Bug:

When a crossbow is loaded and held in your offhand, it appears invisible in first person if also holding an item in your main hand.

Steps to Reproduce:

• Obtain a crossbow and load it.
• Hold it in your offhand.
• Hold something in your main hand.
• →  Notice how when a crossbow is loaded and held in your offhand, it appears invisible in first person if also holding an item in your main hand.

Information:

This ticket clones MC-149799.