While in the Nether fighting Blazes for Blaze Rods, I noted that sometimes when a Blaze fires a Fireball and it misses you, that instead of acting like a projectile, it gains some mob attributes temporarily, and either move at walking speed in a random direction, or remain stationary. It can also be pushed around by other mobs and even noticed as it is despawning by them.

Videos uploaded to Mediafire to show this:

• https://www.mediafire.com/file/6ttr4tkap2ku3rr/Minecraft_2020-11-25_21-20-30.mp4/file
• https://www.mediafire.com/file/21s9vb4nghahqtq/Minecraft_2020-11-25_21-00-23.mp4/file

Steps to Reproduce:

1. Goto a Nether Fortress and fight some blazes.
2. Strafe around to avoid being hit and kill the blazes.

Observed Results:

In rare instances when the projectile (Blaze Fireball) misses the player, it acts as a mob to an extent for a short duration before disappearing instead of acting like a projectile and setting the ground on fire upon hitting it.

Expected Results:

The Projectile (Blaze Fireball) fired from a Blaze should dissipate if it hits a wall or ceiling, or sets the ground on fire upon hitting it.