The Bug:

Armadillos with their "Silent" NBT tag set to "1b" still play their landing and rolling up sounds.

Steps to Reproduce:

1. Summon an armadillo with its "Silent" NBT tag set to "1b" by using the command provided below.

   /summon minecraft:armadillo ~ ~ ~ {Silent:1b}

2. Sprint while near the armadillo and listen closely as you do this.

Observed Behavior:

Armadillos' landing and rolling up sounds can be heard.

Expected Behavior:

Armadillos' landing and rolling up sounds would be silent.