[7.0.0] Docker Version not available for containers with application/vnd.oci.image.manifest.v1+json manifest

I've made a project here - https://gitlab.com/shagon/caddy-cloudflare/ and pushed an image, it works as expected, however the version is "not available" in the UI, even though it is available and working:

~ # docker image pull registry.gitlab.com/shagon/caddy-cloudflare:latest
latest: Pulling from shagon/caddy-cloudflare
Digest: sha256:7413d26a1a8d57c4677de5f766380e62246565300959a7c49e5c43578a3ae463
Status: Image is up to date for registry.gitlab.com/shagon/caddy-cloudflare:latest
registry.gitlab.com/shagon/caddy-cloudflare:latest

Force update through the UI leaves the version as "up-to-date", however a subsequent "check for updates" check puts it at "not available".