Jira Connector Error: Input collection contains multiple instances of the same element

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One of our Jira connector workflows is throwing the error below. What does this mean exactly?

"Error code: 1137. Error Message: Input collection contains multiple instances of the same element."


Also, the connector is only pulling in 977 of the 994 issues that meet the JQL query. I have looked at the 17 issues that are not pulling in and I am not seeing anything obvious about them for them to have been excluded.

Could any of this be related to the "Labels" field in Jira? The connector is only pulling in 7 Jira fields (Issue Key, Summary, T-Shirt Size, Status, Priority, Issue Type, Labels) and Labels is the only one that seems like it might be complicated. The Labels field is also the only thing in the JQL query ["labels in (example1, example2, example3, example4, example5)"] besides the Jira projects themselves.

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