Hi c4dmac, thanks for following up here. With regard to the issue you've reported you can get fixed by reestablishing the executable bit on the kernel_app file found in the zip archive. To sum it up, upon downloading the project tool archive you have to: remove quarantine xattr -d "com.apple.quarantine" ./cinema4d_r21_project_tool_20190903.zip extract the archive (either via terminal or via finder) unzip -d ./cinema4d_r21_project_tool_20190903 ./cinema4d_r21_project_tool_20190903.zip re-establish the kernel_app executable bit chmod 555 ./cinema4d_r21_project_tool_20190903/kernel_app.app/Contents/MacOS/kernel_app Best, Riccardo