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Word crashing with "BUG in libdispatch"

Greets -

A user's Word is crashing several times a day. Sometimes he is not even working in the app when it crashes. Once it crashed when he didn't even have any documents open.

His system.log shows a variety of the following error every time there is a crash:

Nov  4 12:44:08 tsmith-mbp Microsoft Word[1100]: BUG in libdispatch: 20G165 - 7235 - 0x10002004
Nov  4 12:44:08 tsmith-mbp Microsoft Word[1100]: BUG in libdispatch: 20G165 - 472 - 0x10002004
Nov  4 12:44:09 tsmith-mbp com.apple.xpc.launchd[1] (com.apple.mdworker.shared.06000000-0500-0000-0000-000000000000[1813]): Service exited due to SIGKILL | sent by mds[97]
Nov  4 12:44:26 tsmith-mbp com.apple.xpc.launchd[1] (com.apple.mdworker.shared.01000000-0700-0000-0000-000000000000[1815]): Service exited due to SIGKILL | sent by mds[97]
Nov  4 12:44:34 tsmith-mbp com.apple.xpc.launchd[1] (application.com.microsoft.errorreporting.67474742.67474747[1819]): Service exited with abnormal code: 1
Nov  4 12:44:40 tsmith-mbp Microsoft Word[1100]: BUG in libdispatch client: _dispatch_kevent_mach_msg_drain: message reception failed unknown error code - 0x1000600b
Nov  4 12:44:42 tsmith-mbp com.apple.xpc.launchd[1] (com.apple.mdworker.shared.08000000-0300-0000-0000-000000000000[1816]): Service exited due to SIGKILL | sent by mds[97]
Nov  4 12:44:53 tsmith-mbp Microsoft Word[1100]: Libnotify: notify_get_state failed with code 36 (268451842) on line 3866
Nov  4 12:44:56 tsmith-mbp com.apple.xpc.launchd[1] (application.com.microsoft.Word.67448530.67448535[1100]): Service exited due to SIGKILL | sent by loginwindow[141]

I've tried to reinstall Word, including deleting all the library files as detailed here, but to no avail.

Does anybody know what is causing the libdispatch failure and how we might resolve this?

Thank you!

Posted on Nov 15, 2021 8:52 AM

Best reply

leroydouglas

Community+ 2024

Level 10

183,858 points

Posted on Nov 15, 2021 9:12 AM

Zeph Bender wrote:

Greets -

A user's Word is crashing several times a day. Sometimes he is not even working in the app when it crashes. Once it crashed when he didn't even have any documents open.

His system.log shows a variety of the following error every time there is a crash:

Verify your third party software is compatible and up to date...

If you have Office 2011 for Mac or before WILL NOT run, For Catalina Office 2016 for Mac needs to be v15.35 or later.

Update the software : https://docs.microsoft.com/en-us/officeupdates/update-history-office-for-mac 

Big Sur compatibility—Microsoft recently announced that it was officially ending support for Office 2016 for Mac on October 13, 2020. Apple Silicon compatibility in Office 2016 is questionable. Office 2019 no issues.

Big Sur—Microsoft 365 for Mac apps that run natively on Macs both Intel and M1.

https://www.microsoft.com/en-us/microsoft-365/blog/2020/12/15/4-ways-microsoft-365-is-improving-the-experience-for-mac-users/

If in doubt refer to the developers website; Support/Help/FAQ/known issues/compatibility:

Microsoft Corporation/Customer service

1 (800) 642-7676

https://support.microsoft.com

Contact a third party vendor -Apple Support

https://support.apple.com/en-us/HT201777

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Word crashing with "BUG in libdispatch"

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