Thanks for you reply. I tested one of these plugins on an intel iMac running macOS 10.15 without problem. Today, I also tested the same plugin on an intel iMac running macOS 13.2.1 and it opened normally. So, no, I wasn't able to reproduce the bug. But it could be due to the fact that the systems I used was different (unfortunately I don't have a machine running macOS 12 here). For Catalina, the result is probably related to the fact the system is less secure than Monterey, but for Ventura it's unclear if it's related to the plugin, the hardware or the system. I also forgot to say that, during this beta testing session, we tried to disable Gate Keeper on the beta tester machine using the 'sudo spctl --master-disable' command, and that was successful. This seems to confirm your assumption. Knowing that, do you think there is a possible workaround using some other entitlements ? dp