I am attaching a picture of how the PayPal smart button looks like (for the PayPal Express Checkout plugin). It looks like it’s not fitting the correct way as the rounded right side is squared. This happens both at the cart page and the mini cart (not at the checkout page).
Please make the full backup of your site as well as the Theme settings export and check the issue on the Storefront theme to detect if our theme causes the problem. Storefront is a free theme developed by Woocommerce.
You need to contact the plugin support on this issue.
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