1. Confirm whether the format and sampling rate of the song are within the support range of ECHO MINI? You can check the detailed information through System Settings-Music Support list.
2. If the format is within the support range, please confirm the download channel of the song, whether it is an encrypted type of flac format downloaded through the platform. Due to the encryption operation of the platform on the songs, the downloaded songs are not standardized enough after converting the format through online conversion tools, and some songs will be unsupported. These songs can be re-converted by Foobar to support normal format. Foobar conversion method: import the song into the playlist - right-click on the song and select Convert - convert to the desired format can be.
3. If the issue remains, please provide the certain files to us for check.