AlmaLinux 8 instances not working

Pipeline has been failing for AlmaLinux 8 since December 4, and for AlmaLinux 9 since December 25. From the console log of a failed build instance:

[    1.185679] No filesystem could mount root, tried: 
[    1.185680] 
[    1.187541] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

It looks like the new instance boots successfully, we run the build job (i.e. Ansible code), then reboot the instance, and it never finishes the boot process. Example failed job:

https://gitlab.com/jetstream-cloud/image-build-pipeline/-/jobs/5914003306