exchange migration 2010 to 2013 maibox move failed

If it's only 2 mailboxes and if they aren't that big then might be best just to export to pst, remove the mailbox from Exchange server 2010 and create a new one on Exchange server 2013 and import.  

Powershell cmdlets to export Exchange mailbox to PST, get detailed here.

Powershell cmdlets to import PST file to Exchange 2013 Mailbox, get detailed here.

As a workaround, check If there were any old move requests on the Exchange server, If so Remove the move requests.

Run these Exchange Management Shell commands:

Get-moverequest -identity 'mailbox name'   

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This will show a failed status for this mailbox.

Remove-moverequest -identity 'mailbox name'  

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To clears out the move migration for this mailbox

New-moverequest -identity 'mailbox name' -baditemlimit '100' -targetdatabase 'Mailbox Database name' 

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Runs the move via command line instead of via EAC

I hope the deleting migration batch fixed the issue.