This technique is known to not work If the only change to the record is within grid edit children. Based on your note above, it may also not work if a file is edited.
The problem is that the parent form is not detecting a change.
The way I get around this is that I make a numeric field called dummy field. Then I make another field with the formula of dummy field plus one. Then I have a Form Rules that says whenever the Dummy field it's not equal to the dummy field plus one change the value of dummy field to dummy field plus one. This ensures that whenever the record his opened in edit mode that the parent record will be dirtied. Then the Save and keep navigating will work.
I suggest you try that technique and see if it deals with the weirdness you are experiencing. I know that you were saying this is real specific, but maybe it just depends on how the record of being edited.
Thanks, I will try this but another odd thing is that this is not an issue using the same form with an admin role. Plus it also works with the built in green button "save & keep working" at the bottom of the form.
Though if what you describe is true, the if I edit any other field it should "dirty" the record and the file attachment should save. I'm pretty sure that is not happening, the file attachment just won't save when I use the custom button.
Having said this, really appreciate your pointers. I will play around with your suggestion and see if I can get it to work.
Andrew
