We are switching a lot of inputs over from reading SharePoint 2016 UNC File paths to the SharePoint Files connector.
When doing this Alteryx is not picking up the column headers/field names from the file and it cannot be processed as normal.
We have gone into the connector options and selected the following:

But they are still not being read:

Top header from input file for reference:

Have missed something or is there something bigger afoot???
Cheers
Mark