Copy and pasted activity is not saved

[ningsun71]

I have a workflow with nested ForEach activity.

If I copy and paste an activity from the root level to the innermost ForEach activity and click the save button. The UI displays the message indicating the workflow is saved. However, when I refresh the page, the copied activity does not appear in the innermost ForEach component.

This does not happen consistently, but more than 50% of the time. I have confirmed that, the JSON string received by the backend does not contain the copy and pasted activity.