Why arent my changes rolled back when I use a custom Cancel button
For a project I needed a custom 'cancel' button (which just closes that particular form). The changes that I made to the object are still visibile however, when I open the Editform, why aren't the changes rolled back in this case?
Because you have chosen to override the default behavior of the Mendix Runtime you also need to do the rollback (if you want that) manually.
In 2.4.3 there's a rollback activity available in Microflow.
In the versions before 2.4.3 you have to define a custom Java action calling Core.rollback(id).