Brocade Network Advisor: Can Not Backup Configuration Of Switches

BNA is a really good tool for the network engineer to have.  And its a fraction of the cost of something like SolarWinds.  There are a few things to do when trying to get backups of the config, but one thing in particular I ran into recently is that you DO have to create a crypto key.

L3_Switch(config)#crypto key gen rsa mod 1024
L3_Switch(config)#
Creating RSA key pair, please wait...

RSA Key pair is successfully created

I kept getting a failed notification for one switch in particular.  I retyped in the logging host IP, community strings and even my username.  But when I put in the command  up above to create the crypto key, it was then successful in doing the backup from BNA.  Its one option should you have issues.
In case you wonder, from the switch perspective, this is what it sees:
00 days 05h15m21s:I:Security: SSH logout by shane from src IP 10.10.10.1 from src MAC f8ca.b855.7e7c from USER EXEC mode using RSA as Server Host Key.
00 days 05h15m21s:I:SCP transfer from device completed
00 days 05h15m20s:I:scp -f runConfig
00 days 05h15m20s:I:Security: SSH login by shane from src IP 10.10.10.1 from src MAC f8ca.b855.7e7c to USER EXEC mode using RSA as Server Host Key.