Hi @CQCoder
Welcome to the Sonos Community!
Sorry to hear about this issue you are having with Sonos Voice Control.
SVC cannot generally play content from your music library. It can, however, play Sonos favourites and playlists. So, if you were to mark your (imported?) playlist as a favourite within the Sonos app, you’ll be able to name it to SVC and play. Alternatively, create a Sonos playlist that matches the playlist imported from your library. Please note that it can take up to 24 hours for SVC to receive instruction on how to recognise the name of your favourite - as voice recognition is done offline (and therefore without the resources that other Voice Assistants have), it needs a little help recognising new items.
I hope this helps.