Displaying Milliseconds in a Datagrid

I am trying to display a datetime in a data gird using the settings in the data column to apply custom date format using 'MM-dd-yyyy HH:mm:ss.SSS' However, the timestamps are being displayed with the milliseconds as all zeros. For example, 03-21-2016 10:41:07.000 is displayed instead of 03-21-2016 10:41:07.149. I have checked the reference guide for the versions 5 and 6 of the modeler and the documentation states that the format can only support up to seconds. The only way I can see displaying the datetime in the format that I need is to convert the datetime to a string with the desired format and display that attribute. Is there something that I am missing with the custom date format within the column of the data grid or is the only way to display the milliseconds by converting them to a string and displaying the string.
1 answers

In my data grid the milliseconds do show up (5.16.1).

Is your date somehow rounded/truncated to the second?