GitLab Packages List Issue with deploying artifacts to GitLab Maven Repository by Gradle

CI\CD pipeline successfully deploys artifacts to GitLab Maven Repository by Gradle maven publish plugin for different version of artifacts (for example, 1.0.0 and then 1.0.0-SNAPSHOT). So mvn dependency:get -Dartifact=group:artifact:1.0.0 or for 1.0.0-SNAPSHOT version, it also works successfully for downloading from remote repo to local. But only 1.0.0 version shows in GitLab Packages List and available by Packages API.
Why does 1.0.0-SNAPSHOT version NOT show in GitLab Packages List and UNavailable by Packages API?
Does it need any additional configuration for that?