The Bug:

Sculk sensors are not activated upon attaching equipment to entities through their inventories.

It's important to note that the only case where this issue cannot be seen is when horse armor is attached to horses. This ticket previously concerned that attaching equipment to any entity would not activate sculk sensors however, in more recent versions of the game, the behavior regarding this problem has changed and this ticket has been updated accordingly to reflect the most up-to-date information.

Steps to Reproduce:

1. Summon a tamed llama by using the command provided below.

   /summon minecraft:llama ~2 ~ ~ {NoAI:1b,Tame:1b}

2. Place down a sculk sensor nearby.
3. Obtain some carpet and begin riding the llama.
4. Open the llama's inventory, attach the carpet to the llama, and watch the sculk sensor closely as you do this.
5. Take note as to whether or not sculk sensors are activated upon attaching equipment to entities through their inventories.

Observed Behavior:

Sculk sensors aren't activated.

Expected Behavior:

Sculk sensors would be activated.