When reassembling the slide on the frame, does the slide clear the ejector? If so, it’s probably fine. But if the slide hangs up on the ejector its probably bent. You can get a new part from CZ-USA that has the ejector ($35?). But if it came that way from the factory I would contact CZ-USA.
I bent mine by over-inserting a P09 mag in a P10C with the slide locked back. It probably got bent from slamming it in there too hard or too many times. Was able to bend it back, but I did look into getting a new part from CZ-USA if mine was too buggered to be fixed.