Impossible to Get loop_event {var:values} through paypal redirect to ipn and further

Question

Hello,
I'm able to get loop event values to the email body from Submit action with {var:loop_event42}.
But when I need to do it through PayPal Redirect, {var:loop_event42} value is unreachable,
I need to send an email when {url.full:canceled} is called from PayPal Redirect, but I've only managed to send values accessible from {data:field_name} but not from {var:loop_event42}!
Why is it so? Is there any more or less simple solution to get through?

And ipn emails are not triggered at all by {url.full:ipn}.

$Impossible to Get loop_event {var:values} through paypal redirect to ipn and further image 1$

Ipn settings: standalone,
"Canceled" action triggers "email_confirmation" action with an Event loader
$Impossible to Get loop_event {var:values} through paypal redirect to ipn and further image 2$

$Impossible to Get loop_event {var:values} through paypal redirect to ipn and further image 3$
Best regards!