There is an issue with the checkout page. On the checkout page, when i fill the shipping address then select the shipping method and click on the next button it redirect to the payment page. But when i check in the database quote_address table i can see shipping method value is NULL, i can not see the selected shipping method. This issue is happening only some time. So, i can not track the exact issue.
and i back to the shipping step and select the shipping method again, then my shipping method saves into the database.
Please check this video for the more idea.
https://watch.screencastify.com/v/bimyevlOTA80yoRy01Sp
Please help me to come out. Thanks.