Mapbox Visual - formatting and auto zoom not being applied

I added the Mapbox visual to a report yesterday and got it working exactly how I wanted.

When I've opened the report today, I'm seeing the following issues:

1. Auto zoom is not working despite being enabled
2. The formatting configured in the 'Circle' format panel is not being applied. 

I've tried reapplying the formatting and toggling the auto zoom settings. I've also tried completely removing the visual from the report and re-importing from the marketplace, this had no effect.

Any advice would be appreciated!

Marv