Can multiple Salesforce Case associated from Jira affect Salesforce Jira field mapping information?

[JP]

Due to business requirement and reporting purposes, client is associating one or more Salesforce case from Jira. 

In Salesforce, only one Jira is associated but the updates on other associated cases are also showing.

Can this affect the mapping of Jira fields to Salesforce? 

If multiple cases are associated from Jira, the Jira fields mapped in Salesforce are showing blank. Is this an expected behavior?

[Marc - Devoteam]

Hi @JP 

Welcome to the community.

This could.

How is this integration between the systems, is a 3rd part app used?