Safari Extension Not Appearing or Disappearing Intermittently on iPad (iOS 18.3)

I’m encountering an issue with a Safari extension bundled with our main application (F-Secure). The extension is not appearing consistently in Safari settings on a customer’s iPad running iOS 18.3. Below are the details of the issue:

Issue Description The Safari extension is bundled with the main app (F-Secure).

After installing the app, the extension should automatically appear in Settings > Safari > Extensions, where the user can enable it.

On the customer’s iPad, the extension is missing from the Safari settings. It briefly appeared once but then disappeared again.