I've been trying different things to make DPL output lists in alphabetical order, but none seem to work. Does anyone know of a method/ordermethod that would work?
UCP uses a different version of DPL. The new version has a different default sort order. To return DPL lists to the older default order, use ordermethod=titlewithoutnamespace.
Either that or what @Andrewds1021 suggests. Special:Version on RoNRoblox wiki shows a DPL3 link that points to the Gamepedia docs, so don't blame me if it is wrong.
Never mind. Forgot there was a link in the first post.
The issue is that your are using DPLforum, not DPL. DPLforum has an extremely limited subset of the capabilities of DPL. The only order methods available for DPLforum are by first edit, last edit, and page ID (typically same effect as first edit).