[ECP-9691] Payment error at Hyvä Checkout on a mobile device when "Hyvä Default (for: Mobile devices)" is used.

[MaciejAlekseon]

Describe the bug
When attempting to make a card payment on a mobile device with "Hyvä Default (for: Mobile devices)" enabled, we receive the following error: "Error with payment method, please select a different payment method", and the payment cannot be completed.

The issue has been confirmed on a clean version of Magento with the Luna theme. At the same time, it does not occur on the desktop version.

To Reproduce
Steps to reproduce the behavior:

1. Add a product to the cart.
2. Proceed to checkout.
3. Fill in all the details and proceed to payment.
4. Enter the card number and confirm the payment (if using 3DS, complete the authentication).
5. Proceed to the summary step and confirm the order.
6. At this step, you should receive the mentioned error: "Error with payment method, please select a different payment method."

Expected behavior
The payment should be accepted.

Magento version
Magento ver. 2.4.6-p9

Screenshots

Smartphone (Developer tools)
Google Chrome Version 129.0.6668.89 (Official Build) (64-bit)
Mozilla Firefox 131.0 (64-bit)

[candemiralp]

Hello @MaciejAlekseon,

Thank you for reporting this important issue. We reproduced the issue successfully and added it to our backlog. You will be informed after the issue is resolved.

Best Regards,
Can