IPFS hash link keep loading without not responding

Hi,
I'm trying to add many JSON files in IPFS using the following API:
`client.add('item.json')`
And here is the output of the `item.json` file
`{"name":"Musk","description":"description","image":"https://ipfs.io/ipfs/QmP8ZD7YrSyPWaU1UnTD9jFR6rwokncCCd3WK7f7eSJi11/0003.jpeg"}`

The returned hash for this `item.json` works successfully, but when I'm trying to add another JSON file that's slightly different from the first one, the output IPFS hash keeps loading for a long time without any outputs.

And here is the output of the second `item2.json` file
`{"name":"Musk2","description":"description","image":"https://ipfs.io/ipfs/QmP8ZD7YrSyPWaU1UnTD9jFR6rwokncCCd3WK7f7eSJi11/0004.jpeg"}`
And that happens also many times if I just changed the name of the value with anything other than "Musk".

And when I try with localhost IPFS domain it works `http://localhost:8081/ipfs/` but not with the main ipfs link `https://ipfs.io/ipfs/`

I need your help to understand this behavior.
Thanks.