If a blueprint has been created to install some packages and their dependencies from CodeReady-Builder repos, then The Hosted Image Builder fails to generate the blueprint and results into dependency errors like the following:
DNF error occurred: DepsolveError

There was a problem depsolving microcode_ctl, iwl1000-firmware, iwl100-firmware, iwl105-firmware, iwl135-firmware, iwl2000-firmware, iwl2030-firmware, iwl3160-firmware, iwl5000-firmware, iwl5150-firmware, iwl6050-firmware, dracut-config-generic, grub2-pc, dracut-config-generic, efibootmgr, grub2-efi-x64, shim-x64, kernel, @core, authselect-compat, chrony, cockpit-system, cockpit-ws, dhcp-client, dnf, dnf-utils, dosfstools, dosfstools, e2fsprogs, firewalld, glibc, grub2-pc, iwl100-firmware, iwl1000-firmware, iwl105-firmware, iwl135-firmware, iwl2000-firmware, iwl2030-firmware, iwl3160-firmware, iwl5000-firmware, iwl5150-firmware, iwl6000g2a-firmware, iwl6000g2b-firmware, iwl6050-firmware, iwl7260-firmware, lorax-templates-generic, lorax-templates-rhel, lvm2, lvm2, net-tools, nfs-utils, oddjob, oddjob-mkhomedir, policycoreutils, policycoreutils, psmisc, python3-iniparse, python3-jsonschema, qemu-guest-agent, qemu-img, redhat-release, redhat-release-eula, rsync, selinux-policy-targeted, subscription-manager-cockpit, systemd, tar, tar, tcpdump, tuned, xfsprogs, xz, chrony, selinux-policy-targeted, openscap-scanner, scap-security-guide, xz, subscription-manager, rhc, insights-client, rhc-worker-playbook, firewalld, aide, crypto-policies, sudo, gnutls-utils, nss-tools, rng-tools, subscription-manager, opensc, pcsc-lite, openssl-pkcs11, rsyslog-gnutls, rsyslog, firewalld, libreswan, policycoreutils-python-utils, policycoreutils, fapolicyd, s-nail, chrony, openssh-clients, openssh-server, usbguard, audispd-plugins, audit, ipa-client, oddjob-mkhomedir, alsa-sof-firmware, ark, dkms, dnf-automatic, chromium, gnome-extensions-app, cifs-utils, epel-release, git, gcc, make, kernel-devel, krb5-workstation, libmpc, libstdc++-devel, oddjob, openscap, openscap-scanner, pcsc-tools, rsyslog-gssapi, samba, samba-common-tools, scap-security-guide, scap-workbench, scap-security-guide-doc, sssd-tools, tmux, autofs, powershell, docker-ce, docker-ce-cli, docker-buildx-plugin, docker-compose-plugin, containerd.io, pass, yara, code, kubectl, kubeadm, insights-client, libglvnd-devel, acpid, pkgconf, nvidia-driver, nvidia-driver-cuda, nvidia-driver-libs, nvidia-driver-cuda-libs, nvidia-driver-assistant, wine, openconnect, java-17-openjdk, @development:
Problem 1: package wine-8.0-1.el9.x86_64 from 2e3e03474b8fa6aec2d7afad3c353dad4c218a61e2243c7ddcde9e89806f84a3 requires wine-core(x86-64) = 8.0-1.el9, but none of the providers can be installed

• conflicting requests
• nothing provides mesa-libOSMesa(x86-64) needed by wine-core-8.0-1.el9.x86_64 from 2e3e03474b8fa6aec2d7afad3c353dad4c218a61e2243c7ddcde9e89806f84a3
• nothing provides mingw64-zlib needed by wine-core-8.0-1.el9.x86_64 from 2e3e03474b8fa6aec2d7afad3c353dad4c218a61e2243c7ddcde9e89806f84a3
  Problem 2: package kf5-kio-widgets-libs-5.115.0-1.el9.x86_64 from 2e3e03474b8fa6aec2d7afad3c353dad4c218a61e2243c7ddcde9e89806f84a3 requires kf5-kio-widgets = 5.115.0-1.el9, but none of the providers can be installed
• package kf5-kio-widgets-5.115.0-1.el9.x86_64 from 2e3e03474b8fa6aec2d7afad3c353dad4c218a61e2243c7ddcde9e89806f84a3 requires libKF5TextWidgets.so.5()(64bit), but none of the providers can be installed
• package ark-23.08.5-1.el9.x86_64 from 2e3e03474b8fa6aec2d7afad3c353dad4c218a61e2243c7ddcde9e89806f84a3 requires libKF5KIOWidgets.so.5()(64bit), but none of the providers can be installed
• package kf5-ktextwidgets-5.115.0-1.el9.x86_64 from 2e3e03474b8fa6aec2d7afad3c353dad4c218a61e2243c7ddcde9e89806f84a3 requires libKF5SonnetCore.so.5()(64bit), but none of the providers can be installed
• conflicting requests
• nothing provides libaspell.so.15()(64bit) needed by kf5-sonnet-core-5.115.0-1.el9.x86_64 from 2e3e03474b8fa6aec2d7afad3c353dad4c218a61e2243c7ddcde9e89806f84a3
   

If investigated properly, Then when creating a BluePrint from the WebUI of Hosted Image BUilder, CodeReady is not even a repository that is usable by Image builder. 

This Jira requests to add codeready-builder repository support for RHEL 8 and later, in Image Builder.