Outlook: fixed an issue that caused users to be unable to open a .msg file

Release notes for Monthly Enterprise Channel

Version 2506: August 12
Version 2506 (Build 18925.20216)

• Security updates listed here

Resolved issues
Outlook

• We fixed an issue that caused the Copilot Command Center to continue to be visible after disabling the Copilot user interface.
• We fixed an issue that caused users to be unable to open a .msg file without restarting Outlook after accessing it once.
• We fixed an issue that caused Outlook to exit unexpectedly when loading web add-ins in some circumstances.
• We fixed an issue that caused the Copilot icon to unexpectedly display when Copilot had been disabled by the admin in government cloud.
• We fixed an issue that caused some people to see Outlook exit unexpectedly shortly after launch.

PowerPoint

• Resolved an issue where users may receive the error "We're sorry, something went wrong that might make PowerPoint unstable" after pasting content from Word.
• We fixed a bug when creating handouts in PowerPoint, certain characters (full-width numbers) cannot be properly transferred to the handout.

Visio

• Resolved an issue that caused Visio 32-bit to close unexpectedly when using the Drawing control, particularly in setups involving COM components or .NET integrations.

Word

• Resolved an issue in Word where certain characters in the title of the document may be incorrectly displayed as squares during save.
• Resolved an issue in Word where characters could display as squares in the preview box when modifying a style.
• Resolved an issue in Word where, upon inserting a Word document as an object, certain characters in the caption could appear incorrectly as squares.
• Resolved an issue in Word where the Combine Characters function may cause some characters to display incorrectly as squares.
• Resolved an issue in Word where the word count may display incorrectly.
• Resolved an issue in Word where certain characters in the document title may incorrectly display as squares in Options.
• Resolved an issue in Outlook where characters in the subject field would sometimes display as squares when a document was sent as an attachment from within Word.
• Resolved an issue in Word where mail merge fields sometimes incorrectly display certain characters as squares.
• Resolved an issue in Word where characters could display as squares in the preview box when modifying a style.
• Resolved an issue where Outlook may stop working for users when trying to reply to or forward a message.
• Resolved an issue in Word where selecting Save Selection to Text Box Gallery may cause some characters to display incorrectly as squares.
• Resolved an issue where inserting Word documents as objects in a document with a RTL (right-to-left) language unexpectedly resulted in the documents being inserted as pictures.
• Resolved an issue where user defined content marks may be missing after applying a sensitivity label.
• Resolved an issue where users may receive the error "We're sorry, something went wrong that might make PowerPoint unstable" after pasting content from Word.
• We fixed an issue where print preview may stop working when printing long emails.
• Resolved an issue where copying and pasting content between documents may change the applied style unexpectedly.
• Resolved an issue where unsaved comment drafts may disappear on Autosave when "Restrict Editing" setting is enabled.
• Resolved an issue where the search icon in the Navigation Pane may flicker when hovered over.
• We've made performance improvements when performing Mail Merge with large text files.
• Fixed an issue with bullet point placement in relation to vertical alignment of text.

Office Suite

• We fixed a stability issue in Outlook when replying to a message and attempting to send it.
• Resolved an unexpected case where the document was assigned a unique ID prior to its creation, which would result in an error on creating a new document.

Version 2505: August 12
Version 2505 (Build 18827.20230)

Resolved issues
Outlook

• We fixed an issue that caused the Copilot Command Center to continue to be visible after disabling the Copilot user interface.
• We fixed an issue that caused users to be unable to open a .msg file without restarting Outlook after accessing it once.

Version 2504: August 12
Version 2504 (Build 18730.20260)

Resolved issues
Outlook

• We fixed an issue that required users to restart Outlook to open a .msg file after initially accessing it once.
• We fixed an issue that caused the Copilot icon to unexpectedly display when Copilot had been disabled by the admin in government cloud.

PowerPoint

• We resolved an issue where files stored on a network drive might disappear after being embedded as objects into a PowerPoint presentation.
• Fixed an issue where PowerPoint was unable to open a file from a network mapped drive from File Explorer.

Word

• Resolved an issue in Word where users may encounter an issue with saving, seeing the message "saving..." in the title bar.
• Resolved an issue in Word where the table of contents formatting may be broken when specific heading and hyperlink styles were applied.
• We fixed an issue where users are seeing high CPU usage when typing in Outlook.

Office Suite

• Made text rendering inside SVGs more accurate and consistent.