Missing utxos for some addresses

Check out the following address:
https://cardanoscan.io/address/71d5eb5b8bbc21ff1efd496ad2d7572708fa1a63f320724f8e58d15035

When calling
```
utxos = api.address_utxos(address="addr1wyqvpuscfzpcgqmax4javp2k5jkxvdcer3qtstegdgktvkg3p2u55")
print(utxos)
```
I get `[]`
For other addresses built with the same contract it works just fine. Thanks