What were you trying to do that didn't work?

Using ubi 9 minimal as a parent image, one week ago was fine, the last two days is failing

Please provide the package NVR for which bug is seen:

registry.access.redhat.com/ubi9/ubi-minimal:9.4-949-source

How reproducible:

RHTPA Konflux build Pipeline using ubi9 minimal as a base image in the two components

Steps to reproduce

1. Konflux build of RHTPA
2.  
3.  

Expected results

A successful Konflux build

Actual results

[build-source-image : build] 2024-05-02 14:21:45,799:source-build:DEBUG:copy image: ['skopeo', 'copy', '-retry-times', '5', '-remove-signatures', '
[docker://registry.access.redhat.com/ubi9/ubi-minimal:9.4-949-source]
', 'oci:/var/source-build/source-build/parent_image_sources']
[build-source-image : build] time="2024-05-02T14:21:47Z" level=fatal msg="Source image rejected: A signature was required, but no signature exists"