I don't see a carpet on a llama

When I put on a carpet on a tamed llama I can't see the llama wearing it. I've tried carpets of different colours, but none of them are seen on llamas.

 

Steps to reproduce: 

1. I see llama
2. I tame llama 
3. I ride llama 
4. I put on a carpet 

Observed results: 

I don’t see a carpet of any colour

Expected results: 

I see what carpet I put on llama