File upload is unresponsive.

I successfully submitted over 100 models for review. However, for more than 20 of those models, there was no response after clicking to submit for review. What could be the issue?

error message: ‘Request failed with status code 503’

Can you log out and log back in again to see if this resolves the issue? Let me know if it does. If not, send me your Fab profile and some example listing links you’re trying to publish