Submitted the bug: https://feedbackassistant.apple.com/feedback/9072835

Hi skimo. We are not using the Xcode Organizer. The notarization is part of our continuous integration system. So We are using altool (https://developer.apple.com/documentation/xcode/notarizing_macos_software_before_distribution/customizing_the_notarization_workflow?language=objc) The notarization was working OK previously, but in the latest weeks this error (Unable to find requested file(s): metadata.xml) appears frequently.

I tested with Beta 8 and the issue is still there. This is the crash stack trace: dyld3 mode Crashing on exception: The window has been marked as needing another Layout Window pass, but it has already had more Layout Window passes than there are views in the window. <NSWindow: 0x7fcf586a6400> 0xffffffff (-1) {{173, 220}, {480, 348}} Window en Application Specific Backtrace 1: 0 CoreFoundation 0x00007fff205f9bdf _exceptionPreprocess + 242 1 libobjc.A.dylib 0x00007fff20219469 objcexceptionthrow + 48 2 CoreFoundation 0x00007fff205f9a43 +[NSException raise:format:] + 189 3 AppKit 0x00007fff230429c3 -[NSWindow(NSDisplayCycle) postWindowNeedsLayoutUnlessPostingDisabled] + 1707

Thanks eskimo for the quick answer. Yes. System extension support was added in 10.15. So the System Extension activation flow should work in Catalina and BigSur after upgrading the OS from Mojave (version 10.14.6): The application with the system extension was installed in Mojave but after upgrading the OS to BigSur the System Extension is not launched: default 07:44:28.866906-0300 sysextd MacOS error: 3 default 07:44:29.015223-0300 sysextd Error checking with notarization daemon: 3 Also the same issue happens upgrading from Mojave to Catalina. The only way we found to be able to launch de system Extension was installing it again on Catalina or BigSur