Breaks WooCommerce checkout page when coupon is applied

I created a coupon for a subscription product. When I enter the code, it says it’s applied successfully, but I get an endless spinner in the order/payment area.

If I disable this plugin, it fixes the problem, so there’s some kind of conflict going on. I tried excluding the checkout page in the settings and it didn’t help.

Can this be fixed? I really like using this plugin.

 

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