Metadata Burn-ins issue

I'm using the Metadata & Timecode effect to display info about audio and video tracks.

I applied this to a transparent video layer and had it reference Audio track 5 which was where my music was.

I had three cuts with different music tracks, and the display looked fine in the Program window, however once all cuts were exported they all had the same identical burn-ins (each cut should have had a different music track burn-in)

I checked the cuts in Premiere and created the burn-ins again and the same thing happened - they all had identical music track burn-ins depsite being three separate sequences in different tabs.

Seems like a bug?