File attachmens in email not working

Hi

I have two upload fields. The files do get uploaded onto the server correctly.
But the email never gets sent.
​
The file attachment is enabled:

​
I think the files should get attached automatically? Or do I have to add something in the Attachments list field? If so what?
​
I use two file upload fields, multi upload set to "no". "Attach to email" is enabled in file field settings.
​
Thank you very much!

Patrick

Post a debug please.

Solved!
​
My mistake, wrong order of events in setup tab.
​
And in case someone else wants to know if there must be a value in this field:

No, I did not enter anything and it works🙂