I have a Data Table as part of a PowerApps app which displays the contents of a Sharepoint List - two of the columns are Yes/No checkboxes. When I view these columns in Sharepoint I can correctly see some are ticked and some are not :

However when I view the DataTable in PowerApps these ALL appear ticked :

I can see no obvious method within the control of this column to change this behaviour. Any assistance or guidance as to why this is displaying like this?