Unable to take screenshots after updating

Naeruo42 wrote:

The screenshot function on my mac is not working after updating to the newest version.

When I'm trying to take a screenshot this pops up instead (I had to use my phone)

"Your screenshot can't be saved. Unable to capture desktop image"

https://discussions.apple.com/content/attachment/753011b6-8668-4a5e-9332-f863ece40a65

I found similar issues with people unable to screenshot after updating but the solution "unselecting show floating thumbnails" does not work for me.

Tried the default shortcut and the shift-command-5 with both getting the same result.

Also booted in safe mode and still got the same issue.

Capturing selected window, selected area and screen recording is also not working btw.

I don't think I have edited or downloaded anything weird after the update. Any ideas or any ways to find the bug?

If making changes to your options Shift Command 5

I can say third party sync software like: OneDrive, GoogleDrive, BackBlaze or DropBox

can cause issues or usurp screenshots. They have their own settings to change.

for macOS upgrade issue you can try reinstalling the macS on top of the existing macOS to sort issue"

How to reinstall macOS Recovery (both M1/M2/M3/M4 and Intel) — How to reinstall macOS - Apple Support

Once I have my options set I always use the traditional screenshots —

Shift Command 3

Shift Command 4

Take a screenshot on your Mac

Take a screenshot on Mac - Apple Support

To trouble shoot further you can:

 —A SafeBoot Start up your Mac in safe mode - Apple Support will sort many anomalies

Does a quick disk repair before it fully boots up, and certain system caches get cleared and rebuilt, third party system modifications and system accelerations are disabled temporarily.

Login and test. Reboot  as normal and test.  Caches get rebuilt automatically.

This test will tell you if third party interference; most extensions etc are not loaded in safe boot mode. 

—Test issue in another user (or guest user) account Change Users & Groups settings on Mac - Apple Support

 This will tell you if it a universal issue or isolated to your user/admin account. 

***wireless keyboard with rechargeable batteries— connect the charging cable, this will make the wired keyboard successful Safe Boot your Mac.

unplug all non-essential  peripherals when testing

Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus

all known to cause issues on the macOS

Naeruo42 wrote:

Safe mode and using another user gets the same problem.

Also checked console and found this rather suspicious error after trying to take a screenshot

fault 19:12:54.488461+0800 runningboardd Two equal instances have unequal identities. <anon<screencapture>(501) pid=1069 AUID=501> and <anon<screencapture>(501)(0) pid=1069>

It seems like some duplicated files or something? Searched online and didn't find any similar cases

try restore your keyboard shortcuts 

>System Settings>Keyboard>Keyboard shortcuts

makes some changes, then come back to restore defaults, and compare your results