Hello, I have also encountered such a problem. My logic is to ensure that only the system extension of the newer version can be installed before the system extension of the old version can be run. However, after I upgrade the system extension, The XPC server for system extension is not started. Have you solved it yet? How was it solved? Please let me know if you know. Thank you.

Hello, as suggested by you, I intend to apply for the permission of Apple Distribution of EndpointSecurity, but it has been five months now. May I ask when our application will be approved?

I have also encountered this kind of problem and do not know how to solve it. Have you found a solution?