I'm having a senior moment this morning and not much time to research so I apologize in advance.
Upgraded to 13 and imported a short project into DVDA and the markers didn't tag along with it.
Is their an option I need to "check" to make this happen?
I use DVDA 6, but is should work the same for DVDA 5.2. You need to render with markers. When selecting "render as" expand metadata options and select the box for exporting markers. You will have to re-render, however sometimes that is faster than redoing all the markers.