On the “My Account” page in the members area I originally had a first/last name entered. Then I removed my last name. When I look in the PrivateMembersData collection the name has not been removed. If I go back to the My Account page the last name is still removed. How is this possible?
Hi,
it looks like you have an issue inside the editor or your Wix account. I highly recommend contacting Wix support here .
I did. They told me to come here. 
@wixrunner22
As Aleks has already stated above, if you have any issues with the Wix Members app then you should be going through Wix Support themselves as it is a Wix app and not part of Wix Corvid.
However, as for the My Account page through the Wix Members app, that is closed to any outside code from your page code tab and can only be used from within the Wix Members app itself.
https://support.wix.com/en/article/adding-a-members-area-to-your-site
You can use code to access the Members/PrivateMembersData collection that gets added to your website automatically when you add the Wix Members app to your website.
https://support.wix.com/en/technical-difficulties/browser-compatibility
As for your point about it not being removed, are you viewing that page as Admin on the preview or as yourself on the fully published website?
For starters, you are better off testing your website on a fully published version, especially if you are looking at testing things like Members which would use Wix Users API which doesn’t work fully when using it in preview mode.
https://www.wix.com/corvid/reference/wix-users.html
Also, note that when you look at the Wix Members app in your Wix Editor dataset list (you can’t see it from the Wix Dashboard Database Manager section as that is only for your own created datasets and not any Wix app collections).
You will notice that you can not sync this collection yourself as it is done automatically by the Wix Member app itself, therefore if you are viewing the collection when you update anything on your My Account page on your published site, then it probably won’t show any changes in the collection, however it will update itself on the My Account page itself on the website.
If you simply close the Wix Members app collection and go to another dataset or page and then click back on the Wix Members collection, then the dataset field should have updated itself and you will see the changed value in the field.
If the Wix Members app collection was not deleting any value from the field that you deleted on the My Account page itself, then in theory that value would still be in the field and would therefore still be shown on the My Account page when the app reads the data from that rows fields in the collection.
If that is not happening and your values are not actually being removed from your Wix Members app collection when you have either moved off and back to the collection or simply refreshed the Wix Editor.
Then you should be going straight back to Wix Support as Aleks states as it is not a code related issue that can be fixed through the Wix Corvid Forum.