YouTube API Returns Wrong Channel's Videos

Question

I am trying to retrieve videos from "nbaonespn" channel, and instead this API is giving me videos from other channels.

I tried this API call to Youtube API and was expecting to receive videos from "nbaonespn" channel.

https://www.googleapis.com/youtube/v3/search?key=*******&part=id&forUsername=nbaonespn&maxResults=3&order=date

However, I received videos from Fox news and a random channel name Willjum.

Here is the response:

{
    "kind": "youtube#searchListResponse",
    "etag": "lIkxZx_k0uHgRMuqgEf9hPAnnPA",
    "nextPageToken": "CAMQAA",
    "regionCode": "US",
    "pageInfo": {
        "totalResults": 1000000,
        "resultsPerPage": 3
    },
    "items": [
        {
            "kind": "youtube#searchResult",
            "etag": "98v9BVyMoXcCr_-3UmFgOCHwFGE",
            "id": {
                "kind": "youtube#video",
                "videoId": "Vi6XFEoSrtY"
            }
        },
        {
            "kind": "youtube#searchResult",
            "etag": "KCo7llEWVz4_pWSSyPTdwCLERWw",
            "id": {
                "kind": "youtube#video",
                "videoId": "LcjB3uGPtvg"
            }
        },
        {
            "kind": "youtube#searchResult",
            "etag": "-nLmHAse_B2BmMKSHncQJqcYZV0",
            "id": {
                "kind": "youtube#video",
                "videoId": "4c1eqt8FVDE"
            }
        }
    ]
}