Hi @Spencer
Here is an article including the detailed steps of creating a list in DataVerse from a SharePoint list:
[https://www.spguides.com/dataverse-create-table-from-sharepoint-list/
I notice that on the Power Query editor page, we can see there is a column attribute with the same name i.e. ID where one is in lower case and the other one is in upper case as shown below. We have to remove one ID column to make it a unique attribute.
I also notice that value in "Purpose of visit" and "Nature of visit" is mixed, you may create a new list again according to the method I provide above to see whether this problem persists.
Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.