Hello @Leszekt
If the button is still available the course was not sent for QRP, could you resubmit it and see if there is a pop-up message that appears? If it does, you will still need to fill in what is propposed in the pop-up. I fit is a bug (you are submitting the course and it is not sumbitting without any pop-up) I would ask you to take prints and send it to the instructor support.
Kindest regards,
Leonor
Udemy moderation team
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