Currently MAE has an issue where it requires 1 minute to connect to server. Also, whenever you switched to other app and switch back to MAE, it requires 1 minute again to reconnect and become workable. This caused secure2u is not works if you are going to make payment using the same phone. This is because most of the secure2u must be approved in 30 seconds but the MAE needs 1 minutes to get ready.

There are quite some people encountered found from the MAE app's reviews. It still not confirm if it is caused by the phone itself or the MAE app. Also, seems like don't have any solution yet.