The part in red I have added at a later stage. This is causing the issue I have now.
The 'Item' property of the form view: galConsultants.Selected
When I edit a value of the form in a separate screen (see print screen) and click to submit and navigate back to the first screen. Then the first item of the gallery is now selected and not the one I modified. When I click on the cancel button in the edit screen (ResetForm and Back()), it works fine.
It looks like that the submit function is telling to reselect the gallery.