Most feeding issues with Dums are with the babies. This is a shy species in general so babies are more likely to not eat. Some Dum owners even try feeding baby chicks to get them started and had success with that. Compared to a ball python, Dums feeding issues are minor and easier to fix.
Fyi, Dums drink a lot and urinate a lot. They like to burrow so cleaning out the entire enclosure is a must on a weekly to biweekly basis (Depending on size and how much it pees).