If you've edited the demo's dialogue database and see these logs in the Console for either the demo's database or your own:
Can't find type: CustomFieldType_ItemReward. Define a class with this type inside an Editor folder.
then please go to the Templates page and select Menu > Reset:
- resetTemplate.png (45.98 KiB) Viewed 347 times
If you still see any issues in quests you created in version 2.2.8, you can delete the extra fields in the quest. Expand the All Fields foldout at the bottom of the quest, and delete everything after Trackable.