In SDDC Manager 9.0, previously attempted VCF bundle uploads from earlier versions (e.g., 5.x.y.z) fail to re-upload.
This behavior is due to underlying architectural changes introduced in version 9.0.
This issue may occur in the following common situations:
VCF 9.0
Cleanup the previously attempted bundle using the Bundle cleanup script and continue with re download/re upload bundle workflows.
Reference for cleanup: https://knowledge.broadcom.com/external/article/312173/how-to-bundle-cleanup-utility.html