Skip to main content
Skip table of contents

Attachments got duplicated


Attachments of an issue appear multiple times in the original or synced issue. After changing one of the issues some or all attachments continue duplicating.


The duplication is caused by a bug in Backbone Cloud prior to version 3.0.100-AC: BAC-1660.


No new duplications should appear after release 3.0.100-AC. In case this does happen, please reach out to

For existing duplications you can use this python script to clean up attachments and related comments:


  • You need to have Python 3 installed on your computer.

Step-1: Create a Jira API token

In order to run the script you need a Jira API token. You can generate one as described in the Jira Cloud documentation.

Step-2: Find issues with duplicated attachments

  1. Run python -m pip install requests in the root directory of the scripts to install the requests module for python.

  2. Run python --url=<url_of_your_jira_instance> --user=<your_jira_user> --apiToken=<your_api_token_from_step_1> --project=<project_to_check> --dry-run.

    • The result shows attachments and comments (if the project is a JSM project) which are potential duplicates. You can also see the issue keys of these duplicates.

  3. Check the shown attachments and comments, which the script would delete and decide if there are any issues you don’t want to clean up.

All attachments and comments deleted by the script cannot be recovered. Please check carefully before continuing with step 3.

Step-3: Cleanup duplicated attachments and comments

  1. Phrase a JQL statement containing all issues you want to cleanup. A statement could look like this: issuekey IN ("SW1-45", "SW1-46", "SW1-47").

    • If you want to remove all duplicates from all issues, you don’t need to phrase a JQL.

  2. Run python --url=<url_of_your_jira_instance> --user=<your_jira_user> --apiToken=<your_api_token_from_step_1> --project=<project_to_check> --jql=<your_jql_from_step_3-1>.

Now all duplicate attachments and comments should be deleted.

JavaScript errors detected

Please note, these errors can depend on your browser setup.

If this problem persists, please contact our support.