Google Drive Migration to Workdrive

Google Drive Migration to Workdrive

I started a transfer of over 30k files/folders yesterday from gDrive to WorkDrive.  
Its got to 86% completion but has now stopped.

I started the transfer in work and brought laptop home where it continued the transfer.  Now that I am back in work this morning it has frozen.  Any ideas what might be causing it and possible fix?

Thanks,