Scheduled backup to extrernal drive doesn't work

[hornborg]

Scheduled backup using Thinkvantage backup tool doesn't work on my X1, claiming that external USB disk is full. Manual backup to same disk works. The disk is a new 1 TB disk that is only used for backup nad is still only 2% full. Looks like the scheduler is going to some other drive or partition despite that I've changd the location to external USB drive in the schedule settings.

Anyone else recognise this and have a remedy?

Thanks,
Lars.