Issue Summary

In Jira Software, multi-select custom fields (Select List - Multiple Choice) are not rendered correctly within the Advanced Roadmaps (Plans) grid view. When multiple values are selected for an issue, the text values overlap each other, making the field content unreadable.

Steps to Reproduce

1. Create a "Select List (multiple choices)" custom field.
2. Add several options to the field (e.g., "Option 1", "Option 2", "Option 3", “Option 4”, “Option 1 Option 1.1 Option 1.2”, “Option 2 Option 2.1”, etc..,).
3. Add this field to an Advanced Roadmaps Plan configuration (Settings > Configure > Custom Fields).
4. In the Plan view, add the custom field as a column in the grid.
5. Assign multiple values to the field for any issue in the plan.
6. Observe the rendering of the field in the plan grid.

Key Observations:

• The issue was not seen in Jira 10.3.x.
• The data itself is intact; hovering over the field displays the full, correct values in a tooltip.
• The behavior is independent of the browser or user profile.

Expected Results

The multi-select values should be rendered clearly, typically separated by commas or in a wrapped format that maintains readability.

Actual Results

The values overlap within the cell, creating a "jumbled" text effect that is unreadable.

Workaround

Users can mouse over the affected cell to view the full list of values in the browser tooltip.