Sometimes a logo background is set to black which blends in with your SVG logo. In the Brand Assets page, simply hover over the logo, click "..." on the top right hand corner, and select "swap background". The logo background will turn to white and you should be able to see your logo correctly!
If swapping your logo background didn't help, the SVG logo has likely been exported incorrectly. We recommend double checking how your SVG shapes have been grouped and exporting the SVG logo again and re-uploading it to Obello.
If you still need help, reach out to us at support@obello.com