On Windows 10 I would like to move the server data folder to C:\Duplicati. Specifying --server-datafolder C:\Duplicati as a shortcut-parameter of Duplicati 2 had no effect (see screenshot)
I’m used to seeing an = sign between the option and its value, and sometimes the value in quotes if it needs to have spaces protected (probably not an issue in your case). Does using an equal sign help?
“=” did it!