Starting with Sonoma 14.2 it is not possible any longer to connect canon cameras to an app via USB using Canon's EDSDK framework. This has been working fine up to Sonoma 14.1.
The app using the EDSDK is not crashing, but the SDK is not reporting back any connected cameras any longer. The camera is connected and can be seen in the system report as well as in e.g. gphoto2 and even in the EOS Utility Software. It seems that 14.2 introduced some breaking change to the access to cameras from within apps.
I've tried upgrading to the newest EDSDK version and checked with and without App Sandbox. There is no way to find the camera any longer on 14.2.