Wrong Recommender video type result

[forno96]

The recommender related doesn't shows only music videos as you can see in this images

[forno96]

link to the video
ID: pvt9vfM-xIk

[GFdevelop]

https://developers.google.com/youtube/v3/docs/search/list#relatedToVideoId

Note that if the relatedToVideoId parameter is set, the only other supported parameters are part, maxResults, pageToken, regionCode, relevanceLanguage, safeSearch, type (which must be set to video), and fields.