Sorry for emailing this list directly, but with emacs build from the latest commit on `feature/native-comp`, `M-x report-emacs-bug` results in the error "apply: Wrong type argument: stringp, nil". Enabling `debug-on-error` doesn't result in a debug session starting when executing that command, so I'm not sure how to provide any more context for the location that's throwing the error.

GNU Emacs 28.0.50 (build 1, x86_64-apple-darwin19.6.0, NS appkit-1894.60 Version 10.15.6 (Build 19G2021))
of 2021-01-06

This version of emacs was built using https://github.com/jimeh/build-emacs-for-macos from the latest commit on `feature/native-comp` (33b8ce865fcfd58538ae2d7c3fff04998fcd3330). The `build-emacs-for-macos` package also applies the fixes from `feature/native-comp-macos-fixes`.

Let me know if you need more information.

Justin