When the wither shoots me on easy difficulty, it doesn't give me the wither effect, and on normal difficulty, it does, but on hard difficulty, it doesn't.

Steps to Reproduce:

[Step 1] Prepare something that won't kill you from the wither, such as running this command

/effect @s regeneration infinite 225

  [Step 2] Summon the wither on easy difficulty

  [Step 3] make sure it attacks you

  [Step 4] change the difficulty to normal

[Step 5] change the difficulty to hard

[Step 6] compare the results

Observed Results:

Shooting the wither on hard difficulty doesn't give me the wither effect as on easy difficulty

Expected Results:

Shooting the wither on hard difficulty gives me the wither effect

Notes:

• Earlier versions of Minecraft did not experience this