RER not firing if file is added via code

[Deleted]

I have a question from a collegue. We have a rer which is firing on item added and item updated. But if we add a file via code and update the listitem the Event receiver does not work or gets a event. for all other things it works.

Any idea or is this default behaivor.

[#2]

Hi Paul,

How are the items added and updated using code, what authentication is used?

Is it App-Only Context used for manipulating list items when RER is not fired?

Will it fire in case of using user credential (e.g., apply the same operations in JSOM or REST without using app-only auth)?

[#3]

In the end we changed it a bit to a webjob cause we did not have the time at the moment. thanks.