Hi,
Sorry, haven't had much chance to look at your form and probably wont for a week or so now. But this line in the exit event is throwing an exception.
xfa.resolveNode("order_consumables.derm_list.dermrow[" + this.parent.index + "]").derm_products.rawValue = this.rawValue;
I'm not sure what this is meant to do, as it seems to be trying to assign the current value to itself on exit. But the reference is wrong, it should be ("order_consumables.derm_list.Table1.dermrow["
You should make sure that the "When exception is thrown" is set to Break in Acrobat under Edit ... Preferences ... JavaScript.
Regards
Bruce