Sonoma 14.6 update not working well with Macbook M1 Pro

Try running it while in Safe Mode.

Use safe mode on your Mac - Apple Support

When you hear the loud fan noise, open Activity Monitor. Do you see any processes with high cpu use?

Excess fan noise suggests your processor is running at a higher rate than normal. The update to 14.6.1 might have led to a temporary need for higher background processing rates, as I suggested in an earlier post. Higher cpu use, for whatever background processes, could interfere with other "normal" activities, making your system less unresponsive.

MacOS does a lot of background computing, analyzing your data to create things like the ability to recognize your face and others. There were many "under the hood" changes in 14.6. It may be that the changes mean some of this analysis must be done over again. If so, just leaving your computer on and plugged in to power for a while (days?) might allow these processes to catch up, eliminating your problem.

In Activity Monitor, are any processes running a lot, taking a large fraction of available cpu cycles? If so, that would tend to support this analysis of your issue.

I just checked on System Settings / Available Updates, and there is a brand new 14.6.1 version.

Have you tried to disconnect your keyboard using also "forget this device" and reconnect it as if it were the first time?

Under the Bluetooth menu in System Settings, click on the circled "i" beside the keyboard; the "Forget this device" button is in the opening dialog.

Similar issue/ followed these:

did disk utility cleaning

reinstalled OS

started in Safe mode

removed login applications

restarted in normal mode

I found a solution on Reddit.

Click and hold the magnifying glass in the Menu Bar for a few seconds.

Viola.

Mail search is also fixed.

I had this same problem today after updating to Mac Sonoma 14.6.1. For some reason when I went into the Applications folder and clicked on the Microsoft Word icon there (which showed that the last time I'd used it was yesterday although I'd been trying to save things today) and then clicked on the Word documents to open them, even the longest document (78 pp.) opened right away and I've able to use Word without any spinning or freezing or stalling. So far, so good!

It should be fine…

Install EtreCheck and post the report. Allow Full Disk Access.

https://etrecheck.com/

Use the Additional Text icon to paste in the report.

maxfor definitely forget the keyboard and reconnect it helped, but unfortunately the problem persists (it is better, but still happens). Actually, I realized that all my mac is slower. I've never had any performance issues with my mac until this version, and the keys of the keyboard are following this slowness.

14.6.1 (23g93) S L O W !

• Very slow login after lock screen
• slow mail main message screen loading
• very very slow file/image preview. Also fails completely. I have to resize previwe pain for it to render

Similar issues here, plus Scanner not responding well. I have a MacBook Pro M2 Max.

I needed to restart laptop 4 times to scan 2 pages, combined into single document. After scanning the first page, scanner window just vanished and was impossible to reopen it. Had to restart the computer multiple times to finish scanning. Took me 15 minutes. Last iOS updates, both for Mac and iPhone, are messy and disruptive. What's going on?

Thanks for letting us know. It will be interesting to see what has changed.

At first I did not see this new release. Then when I turned off Beta Updates it appeared. To be thorough I went back and tried all the beta programs. If Software Update is set for any beta programs 14.6.1 is not shown.

I'm also with same problem. I'm using Mac Mini M2, and since I updated my software yesterday to macOS 14.6.1 my magic keyboard is not responding the same. Every key I press took about 1 sec to be shown in the screen. My stats seems to be normal, maybe the ram memory is a bit higher than usual but does not explain it at all.