Argh anticheat

Minecraft Username:
@Hackney_Builder

Brief Description:
Rode a horse onto carpet over packed ice, got kicked with code 004.

Instructions:

1. Get packed ice.
2. Get a carpet.
3. Place the carpet on the packed ice.
4. Ride horse onto it.

How many times did you recreate this bug?:
Once.

Result:
Anticheat kicked me.

Expected Result:
I don't get kicked.

Evidence:
Don't have any.