This may be due to the lack of an appropriate license (located in netlogon\ProfileUnity folder) with DIA flags.
The image 1 shows a non-DIA license. Please notice there is no "+DIA" in the description.
To have the DIA running properly, it is necessary to have a valid license as seen below (see image 2).
As you may notice, the license should include "+DIA" in a description; otherwise, the DIA will not be available.
NOTE: To get a valid license, please contact your sales representative.