Hi, I am using Camtasia 2019 to produce a promotional video for a course I am running. In the video, I used a music track "AtTheTop" that came from Camtasia's libary. After uploading onto Youtube, a portion of that music track was flagged with a copyright issue. I have taken the video down from Youtube. Please correct me if I am wrong. I thought everything supplied in Camtasia's library are free for commercial use?