Hi Maria thanks for continuing this thread! Please note that currently the Jira integration that allows for creation of new issues is only supported in Lucidspark not Lucidchart. The Lucidchart integration with Jira detailed here includes a different ability to attach your Lucidchart documents as an image to your Jira issues and is also what Jim's question above refers to.
If you're interested in this other integration you can learn more about how to create Jira issues from your Lucidspark boards in this Integrate Lucidspark with Jira article from the Lucidspark Help Center. Additionally you might find it useful to convert existing Lucidchart documents such as your process flow into a Lucidspark board - more details on how to do that in this Import from and Export to Lucidspark article.
Please take a look and let me know if you have any specific questions about using this integration!