I am unable to download the startup-config from Aruba switches utilizing NCM. It successfully downloads the running configuration.
For device access I use the following and the test works fine:

Here is the download command I am using and the results when I test it.

To be clear, I can manually replace all of the variables in the above command and it still fails from NCM. (It works fine if I use that same command directly on the switch, ie: copy startup-config tftp 10.100.113.99 test-startup-aruba).
My Cisco stuff downloads perfectly. Am I missing something?