Error: unknown blob when deploying


I built & deployed an image as I always would before but during deployment to balena-cloud, I got a message that read:
Retrying "" after 2.00s (1 of 3) due to: Error: unknown blob but it still looked like a succesful deployment to balena cloud with the unicorn icon at the end. Anybody know what this erroris all about and what I can do to fix it?
Thank you!

Hi there, does your build succeed of second or third retry?