It’s the USID Auto Create selection. If you tool tip over the Auto Create it tells you it will set the time. But if you select Auto Create and then click the Clock button in Origination Date/Time, it will write only the time (not the date) in the result file. It’s an obscure thing that will probably never happen to anyone, and I don’t want to use the USID anyway because according to the tooltip if you hover over the USID, you should fill it in accurately with Country Code and Organization Code and I don’t have or want an organization code, so if I autofill all of that (which it appears you can do), the result is incorrect with wrong Country and Organization, so better left blank.
But my real request is to correct the incorrect date and time that are generated in the Origination Date/Time if you don’t go in and click the clock button every time. Pro Tools and other examples I’ve seen do this correctly automatically. Looking back (which I should have done in the first place I admit) I see exactly the same request a couple years ago: