New API only returns {"issues":[],"isLast":true}

[Darryl Hilton]

Hi

Before I start I am not an expert on this, we had a process set up by a former colleague which had always worked until recently. I believe it is due to the deprication of the old API. I updated the proces to point to:

https://api.atlassian.com/ex/jira/$(JIRACLOUDID)/rest/api/3/search/jql

instead of 

https://api.atlassian.com/ex/jira/$(JIRACLOUDID)/rest/api/latest/search

I am using a HTTPCaller in FME for those familiar that looks like below, although the issue I am getting is also the case in Postman.

Every query now only returns a response body of

{"issues":[],"isLast":true}

This is regardless of what parameters I include or not. If I just have a project parameter such as:

https://api.atlassian.com/ex/jira/$(JIRACLOUDID)/rest/api/3/search/jql?jql=project=12200

it does the same, in fact it desn't matter what I put as the project ID (00000 would still do the same)

Full URL for ease of reading:

https://api.atlassian.com/ex/jira/$(JIRACLOUDID)/rest/api/3/search/jql?expand=@Value(_query_expand)&jql=@Value(_query_jql)&maxResults=@Value(_max_results)&validateQuery=@Value(_query_validateQuery)

example:

https://api.atlassian.com/ex/jira/$(JIRACLOUDID)/rest/api/3/search/jql?jql=project=12614 AND updated>=2025-10-14&expand=changelog&maxResults=1000&validateQuery=warn

All the parameters are the same as the old, succesful API version

Any assistance would be gratefully received