I am getting below error when try to run support save. they were running fine on older versions.
supportsave's upload operation to host ip address xx.xx.xx.xx aborted. (the i address is BNA mgmt server)
other error is
You might be running into a known issue where the default install location path got changed during the upgrade . This caused the support save on the switches to fail . This is fixed in 12.1 release .
I recommend checking the path to see if something got changed during the upgrade , make the correction and try again .