Custom filed not added in any screen but custom field used by issues.

[Deleted user]

Hello All,

We are trying to clean up the unused custom fields from Jira. For this we have used Configuration Manager add-on.

When i checked the custom field usage it is showing that field is used in 0 Projects, 0 screens, 0 Workflows and 136 issues. checked the 136 issues data we don't any of the issue using the field.

why it is showing field is used in 136 projects if it doesn't used any of the issue?

Thanks in advance,

Manikanta