Shields appear to stop blocking when they have taken damage and are still in use

When a player is blocking with a shield, and that shield takes damage, the first person view shows the shield to no longer be blocking, even if the player still is. The third person view also shows a visual glitch where the shield appears to be held on the side. I have attached two videos showing how it was in 1.14.3 and from 1.14.4 on.