Problems with Booking and PayPal Checkout

I use the MyTicket plugin 1.2.1 in WordPress 5.8.1 with WooCommerce 5.7.1. Currently I have already set up an event with seats. Here everything works as intended except for the payment with PayPal. For payments by bank transfer, the reservation works, but it will be removed from the seating plan overview after the cancellation period has expired. However, the order is displayed correctly in WooCommerce. Just like orders by bank transfer. I think it's because when you pay with PayPal is redirected to the PayPal page before going to the order confirmation page. Is there something in the process of MyTicket that can be changed so that orders by PayPal are correctly recognized as booked?