Question / Problem:
In KTA 7.4.1 if you have the following setting enabled or mapped (this set by default and Out of the box in KTA 7.4.0) in the Import source it causes a transformation server error message
The Operation could not be performed as the call to the Transformation Server instance listening failed. The error reported was: "No instances of transformation server are registered with TA or running at this time
Answer / Solution:
The above error message can be caused because of the "Default" Scan/VRS that you have above so it needs to be removed and left blank as shown below
In 7.4 remove the "Default" scan/vrs profile and save the setting.
Additionally; in KTA 7.6 this setting is left blank and customer can add/customize this by adding the vrs profile as needed.