macOS 10.12.2 Fixes Time Machine Backup Crashing Issue on New MacBook Pro

Apple in the latest macOS Sierra beta appears to have fixed a common issue where transferring files to an external hard drive or SSD connected to a Thunderbolt 3 port caused the new MacBook Pro to crash for some users.

time-machine-2016-macbook-pro
MacRumors forum member Dave Miles claims he received an email response from Apple's software engineering chief Craig Federighi, who apologized for the inconvenience and confirmed the issue has been fixed in the fifth macOS 10.12.2 beta seeded to developers and public testers on Monday.

While we have not been able to verify the authenticity of the email beyond a reasonable doubt, the issue does appear to be fixed regardless.

At least a half-dozen users claim the fifth beta of macOS 10.12.2 addresses the crashing issues, which most often affected users backing up their new MacBook Pro to an external drive with Time Machine using a wired connection. Some users also reported crashing issues when transferring files between two external drives.

MacRumors forum member TreadEverSoLightly succinctly described the dilemma that a number of other users faced:

I'm already on my 2nd MacBook Pro. Picked up last Wednesday and swapped it for another model 2 days later after experiencing crashing while my laptop backs up via Time Machine to an external HD. Computer freezes up during data transfer and refuses to acknowledge my inputs. Then crashes and restarts itself.

It is unclear what the underlying problem was, with some users speculating it could have been related to USB driver, firmware, or software issues. Others believe large file transfers contributed to the problem. Ultimately, what matters the most is the issue now appears to be resolved.

MacRumors forum member saba01 is one of several users who delivered the good news today following weeks of complaints:

I had the same issue. My MacBook Pro crashed when transferring large files (over 4TB). I installed macOS 10.12.2 and the problem is solved! Yesterday I did a 40TB backup with no problems at all!

macOS Sierra 10.2.2 will likely be publicly released as a free software update later this month following completion of beta testing.

Related Roundup: MacBook Pro
Buyer's Guide: MacBook Pro (Buy Now)
Related Forums: MacBook Pro, macOS Sierra

Popular Stories

2024 iPhone Boxes Feature

Apple Changes Trade-In Values for iPhones, iPads, Macs, and More

Thursday January 16, 2025 6:45 am PST by
Apple today adjusted estimated trade-in values for select iPhone, iPad, Mac, and Apple Watch models in the U.S., according to its website. Some values increased, while others decreased. The changes were not too significant, with most values rising or dropping by $5 to $50. We have outlined some examples below: Device New Value Old Value iPhone 15 Pro Max Up to $630 U ...
iPhone 17 Slim Feature Single Camera 1 Redux

'iPhone 17 Air' Launching Later This Year With These 10 New Features

Wednesday January 15, 2025 7:16 am PST by
While the so-called "iPhone 17 Air" is not expected to launch until September, there are already plenty of rumors about the "ultra-thin" device. Overall, the "iPhone 17 Air" is shaping up to be a mixed bag. Due to its thinness, the device is expected to have some limited specifications compared to the iPhone 17 Pro models, including only a single rear camera, only a single speaker, no SIM...
Generic iOS 18

Everything New in iOS 18.3 Beta 3

Thursday January 16, 2025 12:39 pm PST by
Apple provided the third beta of iOS 18.3 to developers today, and while the betas have so far been light on new features, the third beta makes some major changes to Notification Summaries and also tweaks a few other features. Notification Summary Changes Apple made multiple changes to Notification Summaries in response to complaints about inaccurate summaries of news headlines. For...
Generic iOS 19 Feature Mock Light

iOS 19 Leak Reveals All-New Design

Friday January 17, 2025 2:42 pm PST by
iOS 19 is still around six months away from being announced, but a new leak has allegedly revealed a completely redesigned Camera app. Based on footage it obtained, YouTube channel Front Page Tech shared a video showing what the new Camera app will apparently look like, with the key change being translucent menus for camera controls. Overall, the design of these menus looks similar to...
Apple Card iPhone 16 Pro Feature

Three Companies Are Now in the Running to Take Over the Apple Card

Thursday January 16, 2025 8:18 am PST by
Apple is in talks with Barclays and Synchrony about becoming its new financial partner for the Apple Card, according to Reuters sources. The report today added that Apple has also been holding discussions with Chase Bank owner JPMorgan since last year, so there are at least three potential companies in the running to take over the Apple Card from current partner Goldman Sachs. Goldman...
MacBook Air 15 Inch Feature Blue

MacBook Air Likely Apple's First Product Update of 2025: What to Expect

Wednesday January 15, 2025 8:49 am PST by
There is a good chance that Apple's first product announcement of 2025 will be updated 13-inch and 15-inch MacBook Air models with the M4 chip. Last month, Apple released macOS Sequoia 15.2, and in doing so it accidentally confirmed new MacBook Air models are coming this year (unsurprisingly). Bloomberg's Mark Gurman said the new MacBook Air models will be announced "earlier" than some...
iPhone 17 Pro Dual Tone Feature 1

iPhone 17 Pro Launching Later This Year With These 8 New Features

Thursday January 9, 2025 5:45 am PST by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. iPhone 17 Pro concept based on rumors Below, we recap key changes rumored for the iPhone 17 Pro models as of January 2025: More aluminum: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models ...
iPhone 17 Pro Dual Tone Horizontal Single Feature

iPhone 17 Rumored to Feature Major Thermal Design Upgrade

Friday January 17, 2025 4:33 am PST by
The iPhone 17 lineup will feature a vapor chamber heatsink to improve thermal performance, according to a new report. The news comes from Chinese tech news site MyDrivers, which claims that the entire iPhone 17 lineup, consisting of the iPhone 17, iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max, will adopt the improved thermal heat spreader. Vapor chamber technology is already used...
HomePod mini and Apple TV

Apple Expected to Launch 20+ Products This Year: Here's the Full List

Friday January 17, 2025 5:30 am PST by
2025 promises to be quite a big year for Apple, with the company rumored to be planning more than 20 product announcements this year. Apple's rumored smart home hub will be its second all-new product to launch in as many years, following the Apple Vision Pro headset last year. And of course, we will get several new iPhone and Apple Watch models, like every year. Beyond that, Apple could...

Top Rated Comments

Bubba Satori Avatar
106 months ago
It eventually works.
Score: 30 Votes (Like | Disagree)
Quu Avatar
106 months ago
These laptops seem like nothing but bad news. Lots of hardware and software issues before we even get into all the features missing.
Score: 27 Votes (Like | Disagree)
Born Again Avatar
106 months ago
Okay that's one fix. Now fix the price Apple.
Score: 25 Votes (Like | Disagree)
Larry-K Avatar
106 months ago
MacRumors should reduce the number of posts on the new MBP by reporting only the good news about it.
You mean close down the site?
Score: 24 Votes (Like | Disagree)
Bubba Satori Avatar
106 months ago
There is a reason many of us longtime Apple users avoid rev A products. Let's just say apple has a history of this.
Ok.
Apple has a history of this.
And understandable 15 years ago when they were a struggling company on the verge of extinction.

But Apple today has 100K employees, hundreds of billions in the bank and a trillion dollar valuation.
The current state of affiars is inexcusable, imo.
Score: 17 Votes (Like | Disagree)
yaxomoxay Avatar
106 months ago
MacRumors should reduce the number of posts on the new MBP by reporting only the good news about it.
Score: 15 Votes (Like | Disagree)