When the "Reason Required" option is enabled in a Password View Policy, users are unable to run sudo when connected to Linux servers through the built-in SSH applet. When they do so, the command will hang for a few seconds before returning "Sorry, try again." Afterwards, the keyboard is locked up and the session has to be closed.
When using an SSH TCP/UDP service such as Putty, the same sudo command is successful.
Privileged Access Manager, versions 4.1.0-4.1.7 & 4.2.0
There is an issue within the code related to providing the password view request information during the SSH transparent login.
The issue was fixed as DE604856 in the 4.2.1 release.