This rest search:
| rest /services/apps/local | search disabled=0 core=0|dedup label | table label version
presents different apps and addon version results from the web interface splunk enterprise, apps, manage apps view.
Is it possible that /services/apps/local is not updated?
see answer by @somesoni2 here:
https://answers.splunk.com/answers/626398/where-does-restservicesappslocal-get-data.html