Deployment to Generic Linux device fails to upload tarball via SFTP

-added Sourcery-G++ to the manual toolchains in the preferences
-added my cross-compiled Qt to the manual Qt versions in the preferences
-added a Generic Linux device for my BeagleBoard xM, tested the connectivity, all fine

-Created a simple QtGui project
-Built it using the cross-compiled Qt version, build went fine
-Added a deployment Configuration "Build tarball and Install to Linux Host"
-Selected BeagleBoard for device configuration -> got 2 deploy steps "Create tarball" and "Deploy tarball via SFTP upload using device"
-Added a run configuration for remote execution -> got configuration "BeagleBoardTest (remote)"

Then when clicking the run button, the deployment fail with the error:

"Failed to upload package: no such file"

I've checked the contents of the build dir and the tar file is in there, so it has been created successfully. It seems like it's the sftp command that's borked, somehow it seems to have an empty file name there.

See the attached screen captures for the deployment settings and the error messages produced.