Hi,
Please check if the path that communication channel is trying to access is correct. Try copy pasting the path and access it in WinScp. Most of the time the error is generic.So you will not be able to identify the exact issue.
If that is working fine please provide a screenshot of the error.
If all the above is correct. Try dummy activating the channel followed by a channel restart in RWB. Message was edited by: Akshat Saluja