The "API didn't return a valid response" error in Jira Mobile on iOS usually points to connectivity or server issues. First, ensure your device has a stable internet connection. Try restarting the app or reinstalling it to clear any cached data. If you're using a self-hosted Jira, confirm the server is running properly and the API is accessible. Also, check that your app is updated to the latest version. If the issue persists, verify your authentication tokens and permissions. If nothing works, contact Atlassian Support for further assistance.
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