Hey @Harpreet Sangar, we were chatting with Jason via email about this, he asked to continue the conversation here again. So basically the export with left join still isn't working yet even with "async_reference" in our schemas. We tried the new rc37, which at least stopped the cluster to crash when we do this request, but still we can't get the joined fields in response. When we try the multisearch with the same request, it works perfectly. I know that I could make it work with the curl commands, but in the cluster we can't get it to work.