Creating a new issue on a Kanban Board in Jira throws Uncaught TypeError: undefined is not iterable (cannot read property Symbol(Symbol.iterator)) Error
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Note that this knowledge base article was created for the Data Center version of the product. Data Center knowledge base articles for non-Data Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Summary
Creating new issues on a Kanban board in Jira throws ERROR Exception: Uncaught TypeError: undefined is not iterable (cannot read property Symbol(Symbol.iterator)):
Environment
Jira Software on Data Center with Scriptrunner for Jira up to version 8.41.0 or earlier.
Diagnosis
The issue arises from the use of the third-party plugin, Scriptrunner for Jira up to version 8.41.0 or earlier and specifically when using the Behaviours feature.
Cause
The error is due to a known bug in the Behaviours feature of ScriptRunner, identified as SRJIRA-7810: Using Behaviour setFieldOptions() throws error when in Kanban Board.
Solution
To resolve this issue, upgrade ScriptRunner for Jira to version 8.42.0, where the bug has been addressed. Additionally, it is advisable to perform a re-index of your Jira instance after completing the update to ensure all changes are properly applied.