Mac bugs and fixes September 27 2026: RAW crashes
Chapters
What broke in macOS 15.8?
No public fix for the macOS 15.8 RAW crash had shipped, Heise said on September 24, 2026.
Heise said on September 24, 2026 that the failure sits in the RawCamera framework used to display camera RAW files, including CR2 and NEF images. QuickLook in Finder can freeze, and Preview can freeze or crash, Heise said on September 24, 2026. NeoFinder developer Norbert M. Doerner also saw his media-cataloguing app freeze, according to Heise on September 24, 2026.
The reach extends beyond image browsers. Heise said on September 24, 2026 that Pages and other applications that previously accepted RAW images are also affected. Apple had apparently been informed, but Heise said on September 24, 2026 that whether or when Apple would release a fix remained unclear.
Heise presented moving to macOS Tahoe or Golden Gate as the available escape on compatible hardware on September 24, 2026. Golden Gate requires an Apple Silicon Mac, while Tahoe also runs on Intel Macs, according to Heise on September 24, 2026. The cost is a major operating-system change and no route back to the previous version, Heise said on September 24, 2026.
TL;DR
RAW files can freeze or crash Finder and Preview on macOS 15.8, Heise said on September 24, 2026. No confirmed fix has shipped. For Mac bugs and fixes September 27 2026, I recommend avoiding affected RAW workflows or considering macOS Tahoe or Golden Gate after checking compatibility.
- Heise said on September 24, 2026 that the macOS 15.8 RawCamera failure affects Finder, Preview, NeoFinder and Pages.
- Macobserver said on September 21, 2026 that macOS Sequoia 15.8.1 RC 2 build 24H212 has no published specific fixes.
- Geeky Gadgets said on September 22, 2026 that macOS 27.2 beta 2 retains Siri, subscription-syncing and notification problems.
- Happygamer said on September 25, 2026 that Kingdom Rush 6: Genesis TD has Mac workarounds for slow performance and broken resolution settings.
Has a macOS update fix shipped?
A macOS update fix for the RAW failures has not been confirmed, Heise said on September 24, 2026.
Analyticsinsight said on September 22, 2026 that macOS 27.2 beta 2 carries build 26B5091g and focuses on testing, refinements and fixes. Analyticsinsight did not identify the RawCamera failure among those fixes on September 22, 2026. I would not treat the beta as a named RAW repair.
Macobserver said on September 21, 2026 that build 26B5091g replaced build 26B5086k. Apple had not published a separate consumer-facing change list for the newer build, according to Macobserver on September 21, 2026. Claims about specific application fixes, performance or battery life would therefore be premature.
Macobserver documented redesigned volume and brightness overlays on September 22, 2026. Macobserver said on September 22, 2026 that Apple had not documented the segmented overlays in its release notes or promised that the design would ship unchanged. A visible beta refinement is not evidence that the macOS 15.8 RAW defect is repaired.
Which macOS 27.2 beta issues remain?
macOS 27.2 beta 2 retains notification and Siri-related faults, Geeky Gadgets said on September 22, 2026.
Geeky Gadgets said on September 22, 2026 that a Spotlight-related Siri animation glitch remains unresolved. The same Geeky Gadgets report on September 22, 2026 lists App Store subscription syncing trouble across devices and notification failures in Apple applications such as Calendar and Maps after clean installations.
Analyticsinsight said on September 22, 2026 that Apple's release notes also identify possible Xcode crashes during code-completion ranking and a problem with the Shortcuts Describe a Shortcut function. Those are Mac known issues in a preview build, not fixes available to everyone.
The practical distinction matters. Analyticsinsight said on September 22, 2026 that Apple recommends backing up before installing beta software because preview builds can contain bugs and compatibility problems. Macobserver said on September 21, 2026 that most users should stay on the public macOS release. My position is that ordinary users can act on vendor release notes.
Does macOS Sequoia 15.8.1 RC 2 contain the fix?
Build 24H212 has no published specific fixes, Macobserver said on September 21, 2026.
Macobserver said on September 21, 2026 that macOS Sequoia 15.8.1 Release Candidate 2 is a near-final candidate for Macs remaining on the Sequoia branch. The RC label does not guarantee that Apple will release build 24H212 unchanged, Macobserver said on September 21, 2026. The available documentation gives no confirmed public-release date, according to Macobserver on September 21, 2026.
Macobserver also said on September 21, 2026 that Apple had not attached a security advisory to the prerelease build. I would not describe build 24H212 as an Apple security update or assign vulnerability fixes to it before Apple publishes security content.
The same Macobserver report on September 21, 2026 recommends checking security software, extensions, peripherals, backups and business applications before testing the candidate. That caution is particularly relevant when moving away from macOS 15.8 solely to escape the RAW problem. The preceding daily status is available in Mac bugs and fixes September 26 2026: no fix yet.
What other Mac problem has a workaround?
Kingdom Rush 6: Genesis TD has settings workarounds, Happygamer said on September 25, 2026.
Happygamer said on September 25, 2026 that the game can run slowly when its automatic image-quality choice exceeds the computer or display capabilities. Ironhide's workaround is to set FPS to 30, uncheck VSYNC or do both on page 5 of the Options menu, Happygamer said on September 25, 2026.
For an incompatible resolution, Happygamer said on September 25, 2026 to launch the game, wait for the splash-screen sound and hold Option until the resolution window appears. The alternative is deleting the settings file from the kingdom_rush_genesis folder under ~/Library/Application Support, then restarting the game, according to Happygamer on September 25, 2026.
Deleting that file resets every stored custom option, according to Happygamer on September 25, 2026. Custom keybinding also works only from the SETTINGS menu while inside a stage, Happygamer said on September 25, 2026. Ironhide said customization from other screens would come in a future update, so that part has not shipped, according to Happygamer on September 25, 2026.
What can a Mac user do today?
Most users should avoid macOS 27.2 beta 2 on a daily-work Mac, Macobserver said on September 21, 2026.
If macOS 15.8 freezes while opening RAW files, I would stop previewing those files in Finder, Preview, Pages or NeoFinder because Heise identified each affected workflow on September 24, 2026. Heise did not publish a repair that preserves the same operating-system version on September 24, 2026.
Consider macOS Tahoe or Golden Gate only after checking application and hardware compatibility. Heise identified those upgrades as alternatives on September 24, 2026, while Macobserver advised compatibility checks for security tools, extensions, peripherals, backups and business software on September 21, 2026. Check the disruption and compatibility risk before changing the operating system.
Macworld said on September 21, 2026 that beta software may introduce bugs, compatibility problems and poorer battery life. Back up before testing, and use a nonessential Mac or separate test volume, as Macobserver advised on September 21, 2026. If the Mac must remain on Sequoia, wait for Apple to publish final macOS 15.8.1 release notes rather than assuming build 24H212 contains the RAW fix, based on Macobserver's report on September 21, 2026.