Zoom refuses to play music in background

I run assessments via Zoom for which music is required. The attendees are asked to play via a speaker in the room as sharing computer sound is not possible for everyone since assessments  are conducted via mobile devices and without separate mics. Since a recent update Zoom is now filtering out all/any music rendering my job impossible. Does anyone have any information on if/when this will be fixed? Otherwise we'll have to drop Zoom and use a different platform.

Thanks.