Available API Call Fails During App Installation

Hi,

I released a new version of my app on the marketplace, which supports Jira Data Center version 10 but not Jira 9 versions. When I try to install this app on a Jira 10.3 instance by navigating to Manage Apps > Find new apps > My app, an API call fails with a 404 Not Found error after clicking “Free Trial,” “Buy Now,” or viewing the app listing.

Here is the failing API call:

http://domain:8080/rest/plugins/1.0/available/<addon-key>-key?_=1735045208630

This API works on lower versions of Jira, such as Jira 9.12, with the older version of my app.

I couldn’t find anything related to this issue in Atlassian’s documentation. Is it possible that Atlassian takes some time to allow the app to be installed after its release on the marketplace?