Most of the bugs reported during the macOS 27 Golden Gate beta got cleaned up before the September 14 release, but a handful carried through to the shipping build. None of them are dealbreakers, and most have a straightforward fix.
These are not listed as known issues by Apple, but patterns across early adopters point to a small, repeatable set of problems tied to indexing, Wi-Fi, and third-party app compatibility.
Battery Draining Faster Than Normal
This is the most common complaint in the first 24 to 48 hours after updating, and it is usually temporary.
- Spotlight reindexes your entire drive after the upgrade, which drives up CPU use and fan noise for about a day
- Apple Intelligence and Siri AI download on-device models during setup, which adds a short-term spike in energy and network use
- Open Activity Monitor, go to the Energy tab, and check which apps are pulling the most power. Update anything that consistently sits near the top of that list
- Leave the Mac plugged in and on Wi-Fi for a few hours to let background tasks finish, rather than assuming the battery itself has degraded
If drain continues well past the first two days, check Battery Health under System Settings, Battery to rule out a hardware issue instead.
Wi-Fi Dropping and Random App Crashes
Intermittent Wi-Fi disconnects have been reported mainly on M1 and M2 Macs, alongside random crashes in Safari and some third-party apps.
- Toggle Wi-Fi off and on from the menu bar first. It resolves the issue for most people
- If the same network works fine on another device, the problem is more likely with macOS 27 than your router
- Update Safari extensions and any VPN client you rely on. Cisco VPN and a handful of third-party VPN apps had documented compatibility issues during the beta
- Restart the Mac if the network drops persist after switching Wi-Fi off and back on. A cold restart clears the issue more reliably than putting the Mac to sleep
Apps Not Launching or Accessories Acting Up
A Mac that qualifies for Golden Gate can still run into trouble with specific apps and peripherals that have not caught up yet.
- If an Intel-only app refuses to open, macOS 27 will prompt you to install Rosetta first. That prompt is normal behavior for any Intel-only app on this release
- Apps that crash rather than refuse to launch usually just need a developer update. Check the App Store or the app’s own update mechanism
- Third-party mouse and trackpad utilities have been reported losing their Mission Control and Spaces gesture assignments after the update, even when the same gestures work fine with a standard trackpad
- Thunderbolt accessories and AirPlay through some third-party audio routing tools have also shown compatibility issues. Check for an app update before assuming the hardware itself failed
Golden Gate is the last version of macOS with full Rosetta 2 support, according to Apple, so app compatibility problems tied to Intel-only software will only grow more common from here.
