Session data lost after redirect randomly (CI4.1.5)

You could try this merging the arrays:

PHP Code:

$cartData = $session->get();
$newData  = ['cart' => $cart, 'orderId' => $order['id']];

$sessionData = array_merge($cartData, $newData);

$this->session->set($sessionData);
log_message('error', 'Debug: add to cart, session set: '.json_encode($_SESSION));
return redirect()->to('/cart'); 


See if that works, I do not have the time to test it right now.

What did you Try? What did you Get? What did you Expect?

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