At the moment when you select a Jira ticket at the point of commiting to a branch, you are able to track that actionback into Jira.

However when a PR is opened from that feature branch to the next environment branch (in the Pipelines UI specifically) the Jira ticket association is lost, and has to be reattached manually.

Workarounds:
1. Manually add the ticket ID to the PR description, which will reassociate it
2. Use the drop down menu provided in the Pipelines UI to re select the Jira ticket
3. Open the PR from the Commit successful screen and tick the box to include Jira ticket links

Please could the Jira ticket be "remembered" or the ticket ID automatically added to the PR description, so that it does not need to be reattached, saving the user a couple of clicks.