Unable to update Jira issue description with mediaInline via REST API (400 Bad Request)

We are integrating Jira Cloud via the REST API to sync issues between two Jira instances. While updating the description of an issue (to include text + attachment reference using mediaInline), the API call consistently returns 400 Bad Request.

Hello @Nagaraja

Unfortunately, you haven’t provided any useable information that would allow anyone to offer any insight as to what the problem might be.

Refer to the How to Ask A Good Question thread for a good overview of the minimum standard that’s expected for anyone to be able to assist.