cannot auto-fill password when connecting with su-user in SSH session

Hello Sir/Madm,

I am trying to automate the login with su-user referring to https://docs.devolutions.net/kb/remote-desktop-manager/knowledge-base/connect-su-user-ssh-sessions/
I had done the following steps

1. add commands in Post Login
2. enable password in variable in the SSH entity and linked account

when I login, the server still prompt for my password? did I miss anything?
my RDM windows 2023.3.24.0 64-bit

Regards,
Eric