Dialogue Window Remains Open After Talking to an NPC

[Yoress]

Description

Many quest handlers mistakenly send the HTML_PAGE_SELECT_QUEST dialog (ID 10) when they should instead allow the dialogue window to close. This results in the dialogue window remaining open, returning to the quest selection page for the current NPC.

I do not presently have a list of the offending handlers.

Reproduction steps

N/A
Generally speaking, though, if you play through enough quests in-game, you're bound to encounter this issue.