I try to run diffrent workspaces with a WorkspaceRunner. It works with a fullpath but not if I use a AttributeValue or a UserParameter fed by a pathReader.
The ErrorMessage contains "An error occurred while evaluating a test parameter: @Tcl2 -- failed to evaluate expression `WorkspaceRunner ..."
I run it on Windows 10 with FME 2022.1. I already added FME_Home to PATH environment.
With FME 2019.2.x it worked fine.
An Example Workspace is provided.