Unfortunately no good news, @BetterSister. Despite swapping to UseScriptOn and adding the script provided by @Droidz above, the character is running to the objects, presumably running the script (and waiting 5000 ms), then moving to the next object. It does not even attempt to interact with the quest objects. Tested on multiple quests in multiple zones on multiple characters, all with the same result.
Schaka suggested on Discord to clear my session blacklist to see if that helped, but that did not. I'm honestly at a loss as to why this is happening.