Mac bugs and fixes September 22 2026: status
Chapters
What broke in macOS Sequoia 15.8.0?
macOS Sequoia 15.8.0 broke Apple RAW handling, according to Lightroom Queen on September 20, 2026.
The Lightroom Queen report dated September 20, 2026 describes generic image icons, missing thumbnails, slow file moves and storage devices that resist ejection after RAW files are accessed. Finder actions involving other images can then hang, apparently because Quick Look and icon thumbnails remain occupied while trying to load the RAW files.
The same September 20, 2026 report says Preview and Photos can stop responding after opening RAW files, while Lightroom can encounter import problems. The affected formats named in the report are recent Fujifilm RAF files, older Canon CR2 files and Olympus ORF files.
A contributor with an iMac 2019 said the Intel Mac was affected, but the Lightroom Queen discussion dated September 20, 2026 could not establish whether the failure was limited to Intel hardware. Photos already stored in Lightroom catalogues appeared safe in that report, but the cited discussion contains user reports rather than an Apple acknowledgment.
No macOS update fix is named in the September 20, 2026 Lightroom Queen report. Avoiding Apple-backed RAW previews prevents the reported trigger, but the cost is losing Finder thumbnails, Quick Look, Preview and Photos for that work.
TL;DR
Apple RAW handling broke on Macs running macOS Sequoia 15.8.0, according to Lightroom Queen on September 20, 2026. The report names no shipped fix; the September 17 WoW: Forever report includes a user-reported graphics workaround but no released repair, while the September 18 Grok Bot report says the failure requires a server-side fix and names no released repair.
- Lightroom Queen said on September 20, 2026 that macOS Sequoia 15.8.0 breaks software using Apple RAW.
- Us Forums Blizzard users said on September 17, 2026 that lower graphics settings can bypass the WoW: Forever freeze.
- Forum Cursor said on September 18, 2026 that the Grok Bot failure requires a server-side fix.
- Blakecrosley said on September 16, 2026 that upgrading to macOS 27 does not automatically restore a previous Rosetta installation.
Why does WoW: Forever freeze the Mac?
The cause remains unconfirmed, according to Us Forums Blizzard on September 17, 2026.
The September 17, 2026 report concerns the WoW: Forever beta client on a MacBook Air M4 running macOS 26.6.2, build 25G83. The client launches, but entering the game world can leave the entire computer unresponsive and force the user to hold the power button for a shutdown.
The report identifies the client as build 69893 running native arm64, while its application hang report shows the main thread blocked in __ulock_wait for a thread named ThreadPool Low 2. The author cautions that the application hang report does not establish the cause of the full-system freeze and may record a later hang after restarting.
Users in the September 17, 2026 Blizzard discussion said setting graphics to 1 allowed the world to load, after which one user could raise the setting to 2. The same user said the client crashed at 3 or beyond, so the workaround costs graphics quality during entry and may not prevent another crash.
The Blizzard discussion dated September 17, 2026 names no confirmed cause, vendor acknowledgment or shipped fix. These Mac known issues therefore remain user reports rather than a completed diagnosis.
Can a Mac user repair the Grok Bot failure?
No local repair works, according to Forum Cursor on September 18, 2026.
The September 18, 2026 report says the Grok Bot computer never becomes reachable because its initial server-side setup does not finish. Recover and Reset both stop at 50% while starting the computer, and Reset erases data before failing at the same stage.
Cursor’s response in the September 18, 2026 thread says the fault is not on the Mac or in the user’s configuration. The reporter had already changed networks, tried a personal hotspot and VPN, flushed the cache, checked DNS and confirmed the account was not an expired trial.
Cursor called the failure a known issue that must be fixed on its side in the September 18, 2026 response, but it did not name a released fix. Cursor also instructed the user not to run Reset again because it would not complete.
Chat continues to work because Cursor said on September 18, 2026 that the existing conversation runs on its servers while the agent computer remains unavailable. After Cursor repairs the computer, its instruction is to quit Grok Bot from the menu-bar icon and open it again; until then, the cost is losing the agent computer while retaining chat.
Which Mac fixes have shipped?
macOS 27 shipped security repairs on September 14, according to Korben on September 16, 2026.
Korben reported on September 16, 2026 that Apple’s September 14 updates fixed 232 distinct flaws across iOS 27 and macOS 27. The repairs included a kernel root-privilege escalation and a CUPS bug, making macOS 27 the shipped Apple security update in today’s cited reports.
macOS 27 also changes Rosetta behavior rather than simply preserving every previous compatibility choice, according to Blakecrosley’s September 16, 2026 account of Apple’s support articles and release notes. Rosetta remains available on Apple silicon with macOS 27 or earlier, but a previous Rosetta installation is not automatically restored during the upgrade.
Blakecrosley reported on September 16, 2026 that applications previously set to Open using Rosetta launch natively, installer packages without hostArchitecture default to arm64, and Intel plug-ins or loaders may not appear in Settings or produce incompatibility notifications. Blakecrosley interpreted the native launch as a cleared setting that a user may be able to restore, but explicitly said that reading had not been tested on a macOS 27 machine.
The cost of an unexpected native launch can be an unloaded Intel plug-in, according to Blakecrosley’s September 16, 2026 analysis. My previous Mac report provides related daily coverage.
What can a person at the keyboard do today?
Avoid Apple RAW workflows on macOS Sequoia 15.8.0, based on Lightroom Queen’s September 20, 2026 report.
For RAW files: Do not trigger Finder thumbnails, Quick Look, Preview or Photos for important RAF, CR2 or ORF work on macOS Sequoia 15.8.0 while the September 20, 2026 Lightroom Queen report remains without a named fix. That precaution costs the convenience of Apple’s previews and may require keeping the files inside an existing Lightroom catalogue.
For WoW: Forever: Set graphics to 1 before entering the world, then test 2 only after the character loads, following the user workaround in the September 17, 2026 Blizzard discussion. Do not assume the workaround removes the underlying freeze, because the same discussion says 3 or beyond caused another crash and contains no confirmed repair.
For Grok Bot: Stop using Reset while the computer remains unavailable, following Cursor’s September 18, 2026 instruction. Wait for Cursor to repair the server-side initialization, then quit the menu-bar application and reopen it; the cost is that the agent computer remains unusable during the wait, although chat remains available.
For macOS 27: Before upgrading, identify applications that depend on Open using Rosetta, Intel plug-ins or installer scripts with no hostArchitecture, following Blakecrosley’s September 16, 2026 summary. The security repairs have shipped, but the compatibility cost can include native launches, missing plug-ins and scripts running under arm64.
Frequently asked questions
Has Apple fixed the macOS Sequoia 15.8.0 RAW problem?
No shipped Apple fix is named in the Lightroom Queen report dated September 20, 2026. The discussion also contains no Apple acknowledgment.
Is the WoW: Forever freeze a macOS 26.6.2 kernel panic?
The September 17, 2026 Blizzard report contains an application hang report, not a kernel panic report, and says the record does not establish the cause of the full-system freeze.
Should I reset Grok Bot when it stops at 50%?
No. Cursor said on September 18, 2026 that Reset cannot finish, erases data first and should not be run again while the server-side issue remains.
Does macOS 27 reinstall Rosetta during an upgrade?
No. Blakecrosley reported on September 16, 2026 that a previously installed copy of Rosetta is not automatically restored when a Mac upgrades to macOS 27.