Hi @brendan - Congrats on completing the migration! I took care of that issue for you so you should be good to go with uploading your new
For anyone else running into issues uploading your descriptors, it may be caused by another app (typically one you’ve used for staging or development thats private or possibly a rejected app listing) containing the same descriptor URL. You’ll need to have the conflicting version removed in order to upload your new descriptor. Contact Atlassian Marketplace Vendor support for assistance there.