ISSUE
When configuring List Lookup control filter settings for a Nintex form, the filter applied does not work when using the form.ERROR CODE
Exception trying get context compatibility level: System.IO.FileNotFoundException: The site siteurl/_vti_bin/NintexFormsServices/NfRestService.svc/GetDataForControlAsync could not be found in the Web application.RESOLUTION
- Make sure there is a root site collection for all web applications in the SharePoint farm.
- Deactivate and Reactivate the Nintex Form web application feature for the web application missing the root site collection.