Problem

On August 1, 2017, Microsoft released the latest update for Office 2016 (MSI installations; version 16.0.4549.1000). This update (KB4011051) includes a bug that causes the eXtyles Paragraph Styling palette and the Auto-Redact dialog to crash. When you click the Style Paragraphs button or the Auto-Redact button, the respective dialogs fail to load. All other eXtyles features continue to function.


The corresponding update for Office 365 and Office 2016 Click-to-Run installations (Version 1707, Build 8326.2058) was first released towards the end of July; the date of this update depends on the user's Update Channel.  In these versions of Word, only the Paragraph Styling palette is affected by the update. 


Some users have also reported the following error message when launching the Cleanup dialog:


Run-time error 372: Failed to load control 'MSFlexGrid' from MSFLXGRD.OCX.
Your version of MSFLXGRD.OCX may be outdated. Make sure you are using the 
version of the control that was provided with your application.


Diagnosis

The specific file that introduces this issue has been identified (C:\Program Files\Microsoft Office\root\vfs\SystemX86\mscomctl.ocx) and reported to the Microsoft Team. 


Solution for Office 2016 MSI

UPDATE (08-24-2017)

On August 22, Microsoft released an update for MSI installations of Office 2016. We have confirmed that this update resolves the bug and does not impact other eXtyles functions. 


To resolve this bug, please download and install update 4011093 (KB4011093). 


Please note that the update on the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn't apply to the Office 2016 Click-to-Run editions, such as Office 365. Not sure which version you are using? See "Is my Office Click-to-run or MSI-based?" at the bottom of this article.


Solution for Office 365 and Click-to-run 

UPDATE (08-28-2017) 

On August 25, Microsoft began rolling out a new update for Office 365 and Click-to-run installations of Office 2016. We have confirmed that this update resolves the bug and does not impact other eXtyles functions. 


To resolve the bug, please update to the latest version of Office (Version 1707, Build 8326.2087). 


If this update is not available to you, you can force the update through the Command Prompt by doing the following:

  1. Disable Automatic Updates so Office doesn't try to update itself again once you've completed the other steps. Open Word, then click File > Account. Next, click the Update Options button and choose Disable Updates. If you are an Office Insider, temporarily opt-out of the program.
  2. Close all Office applications
  3. Open the Command Terminal with Administrator privileges
  4. Run the command:

    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\officec2rclient.exe" /update user updatetoversion=16.0.8326.2087


Is my Office Click-to-run or MSI-based?

  1. Open an Office application, such as Outlook or Word.
  2. Go to File > Account or Office Account.
  3. If you see an "Update Options" item, you have a Click-to-Run installation. If you don't see the "Update Options" item, you have an MSI-based install.


(borrowed from MS Support)