The issue has been identified and we are working on a fix.
In the meantime we encourage everything to double check if transactions in pending state (in Shopify admin) are captured by checking the payments in the gateway on app.pensopay.com.
So far all captures/refunds are processed succesfully, but if you want to make sure, you can check it out on your own.
If you have any questions, please do not hesitate to reach out.