For discussing the development and usage of Checkout UI extensions, post-purchase extensions, web pixels, Customer Accounts UI extensions, and POS UI extensions
If you hide a payment method based on cart price (Payment Customization API), and a customer previously selected that payment method, then updates their cart below the threshold, they are unable to continue checkout past the contact info screen. Happens with both the extension as well as Shopify script. Huge bug rendering this unusable for us.