Hi Doug,
Starting with Survey123 Connect for ArcGIS v 1.1.30, we have changed the publishing workflow to ensure the feature service is always in sync with your questionnaire. In this manner, if you add, delete or modify questions or anything in the choices list you will always have a matching feature service. I would suggest you install the latest version of Survey123 Connect.
Now, it is important you understand how your feature service is kept in sync when you publish. In fact, as of 1.1.30 every time you publish (or re-publish) a new feature service is created, and the old one is deleted. This means that if you had any data in your feature service you will lose it.
Typically, re-publishing a survey is something you will do frequently until you are happy with it, but make sure you do not re-publish once you have shared the survey with people in the field. Sharing your survey and having people submitting data to it is a point of no return. If you really need to change the survey once people have submitted data to it, it is best to create another version of the survey and ask people to delete the one they had and start submitting to the new one.
Finally:
1) If you ever get into a situation where publishing fails due to the existence of a folder with the same name, you will need to log into ArcGIS.com or your Portal for ArcGIS, go to your contents and manually delete the entire folder for your survey. This may happen occasionally.
2) version 1.1.30 has a software defect that causes the survey folder to be called 'survey123-undefined' when you publish a survey for the very first time. If you publish a second time, then the folder will be named appropriately. We will fix this in the next few days.
