I have one issue type "Xray Test" linked to a story with summary as 'Old Summary' which I updated later to BUG type and updated summary to 'New Summary'
When I retrieve using the mentioned API, I get inward linked issue and issue type of that is still coming as "Xray Test" and 'Old summary' instead of 'Bug' and 'New Summary' what is the problem here in the API.
PS - the issue was due to refresh error in power bi.. the issue is solved. Sorry for the confusion.