I'm configuring ServiceRocket Salesforce <> JIRA connector. The integration is setup correctly, I can manually create a JIRA Issue from Salesforce, however, when attempting to automatically create a JIRA issue I get an error about Summary not being populated:
JIRA validation failed! summary: You must specify a summary of the issue.
After confirming that my mappings were setup correctly, I read that this probably has to do with the Summary field not being on the Screen for the project/issue type. I've confirmed that the summary is present on the creation page for this project/issue type, and have attached a screenshot of same.

Here's a screenshot of my field mappings (bindings):

So, I'd like to understand alternative reasons why the JIRA summary field wouldn't be populating from Salesforce.