Rocknwatch,   I haven't heard of this happening specifically. What I suggest is that if you have any downtime, would you try breaking the stack to then change the setting on the master, and then stack it again and see if it successful. If so the issue may be performing within the stack.    Let me know.    
Hi, I have two N3048P switches in a stack running version 6.5.4.18 and I am trying to get ssh configured. Telnet is enabled so I can access it remotely currently, but would like to use ssh. What I did: 1. Enter into configuration mode: (conf t) 2. no ip ssh server 3. crypto key zeroize dsa 4. crypto key zeroize rsa 5. crypto key zeroize pubkey-chain ssh 6. crypto key generate dsa  ... I get an error showing "Error: Failed to generate DSA key." When trying it with RSA first, I get a similar error: "Error. Failed to generate RSA key." Any reason why this is the case?
Error. Failed to generate DSA key