Specify the company leaders explicitly. Use the following PowerShell commands: $upap = Get-SPServiceApplicationProxy appid]; ...

Specify the company leaders explicitly. Use the following PowerShell commands: $upap = Get-SPServiceApplicationProxy [appid]; Add-SPProfileLeader $upap [Domain]\[UserName]. Run 'Get-SPProfileLeader $upap' to check whether the leader was successfully added. As a last step, run a full crawl on the content source containing the start address (URL) of the user profile application.