We are happy to provide the answer to why you need to have your Facebook account connected in order to pull the Instagram hashtags.
Please note that since we are pulling the feeds from the official Instagram API due to Instagram API limitation, we need to have an active Instagram business account that is connected to a Facebook page in order to pull the desired Instagram hashtag feeds.
If you have any questions, click the bottom right chat icon to talk with our customer success team or send us an email at support@embedsocial.com We're here for you 🙏