- Office 365 Can't Open Outlook
- Office 365 Outlook Sign In Email
- Why Doesn't Outlook Show Attachments
- Outlook 365 Attachment Issues
I too have been struggling with this problem. Using Outlook 365 ProPlus Version 1708 (Build 8431.2215) on an HP Envy laptop. Many of the recommended solutions revolve around finding the 'fly in the ointment' or the app, add-in, etc. That is sparking the behavior.
- May 06, 2020 Microsoft 365 Apps Known Issues. 5/6/2020; 3 minutes to read; In this article. These known issues provide information about non-security updates that are included in Monthly Channel, Semi-Annual Channel (Targeted), and Semi-Annual Channel updates in 2019 for Microsoft 365 Apps for enterprise, Microsoft 365 Apps for business, and the subscription versions of the desktop apps for.
- Nov 18, 2019 When you use Microsoft Outlook together with Microsoft Office 365, you experience one or more of the following symptoms: Outlook responds slowly when you try to open email messages. When you send an email message, the message sits in the Outbox folder for a long time. Outlook responds slowly when you try to insert an attachment.
- In the meantime, each attachment should still open as expected in other Office apps but if you would like to still preview files in Outlook there is a workaround available. There is a similar issue with HTML files that the workaround below will not work for, in that case you still need to open the file in the browser directly to view it.
![Office 365 Outlook Attachment Problems Office 365 Outlook Attachment Problems](https://www.itprotoday.com:443/sites/itprotoday.com/files/styles/article_featured_standard/public/uploads/2015/12/attachments_0.png?itok=hOkZaIfd)
Office 365 Can't Open Outlook
![Why doesn Why doesn](https://www.windowsphoneinfo.com/proxy.php?image=https:%2F%2Fwww.tenforums.com%2Fattachments%2Fmicrosoft-office-365%2F207092d1538816652t-office-2019-black-theme-back-but-outlook-still-auto-config-office2019.png%3Fs%3Df18bcd60db4434bbefb6004867c36e7a&hash=d06ad6cdd86f4caef50976fb46fd575c)
These known issues provide information about non-security updates that are included in Monthly Channel, Semi-Annual Channel (Targeted), and Semi-Annual Channel updates in 2019 for Microsoft 365 Apps for enterprise, Microsoft 365 Apps for business, and the subscription versions of the desktop apps for Project and Visio.
Note
- This list is not comprehensive.
- If you are experiencing an issue in a channel other than the channel shown as resolved, you can expect resolution soon. Learn more
- Resolved issues are documented in their respective channel pages as well.
Last Updated November 12, 2019
Excel
- Check box controls could shrink when using autofit to adjust row height
Investigating: Monthly, SACT - Performance issue with Asynchronous User-Defined Functions that was causing them to be run Synchronously.
Resolved: SACT Version 1908 (11929.20436) - Users could be prevented from saving in Office 365 Excel Workbook format
Resolved: SACT Version 1908 (11929.20436) - Issue with slow performance on clicking on the Font Color button when a file has extensive conditional formatting.
Resolved: SACT Version 1908 (11929.20436) - Significant improvements to the performance of deleting columns with merged cells
Investigating: SACT
Resolved: Monthly Version 1910 (12130.20272) - Incorrect results when converting report filters along with the rest of the PivotTable for queries to SQL tabular servers.
Investigating: Monthly - Fix to correct colors used in previews when inserting charts using chart templates
Resolved: Monthly Version 1910 (12130.20272), SACT Version 1908 (11929.20436) - Identified an issue in inserting files as object from OneDrive.
Resolved: Monthly Version 1910 (12130.20272) - Identified an issue where workbooks created in earlier versions of Office could cause Excel to hang when opened in current versions of Office.
Resolved: Monthly Version 1910 (12130.20272), SACT Version 1908 (11929.20436), SAC Version 1902 (11328.20468) - Identified an issue that was causing delays in displaying typed values after deleting a range.
Resolved: SAC Version 1902 (11328.20468) - Identified an issue where selecting a cell after scrolling could result in the wrong cell being selected.
Investigating: SACT
Resolved: Monthly Version 1910 (12130.20272) - Identified an issue which could have caused scatter line charts from rendering properly when changing the series collection.
Resolved: Monthly Version 1910 (12130.20272), SACT Version 1908 (11929.20300)
Outlook
Office 365 Outlook Sign In Email
- Identified an issue that caused some users to see duplicate special folders created when adding a secondary Exchange account.
Resolved: Monthly Version 1910 (12130.20272), SACT Version 1908 (11929.20436) Breakaway audio enhancer 1.40.03 crack. - Identified an issue which could have resulted in a memory leak.
Resolved: Monthly Version 1910 (12130.20272), SACT Version 1908 (11929.20388), SAC Version 1902 (11328.20468) - Addresses an issue that caused some users to see duplicate special folders created when adding a secondary Exchange account.
Resolved: Monthly Version 1910 (12130.20272), SACT Version 1908 (11929.20436) - Identified an issue which could sometimes result in a crash when a user receives a 'Missed Conversation' message from Skype.
Resolved: Monthly Version 1910 (12130.20272) - Identified an issue that caused Users to receive a generic 'operation failed' error when opening an attachment on a machine where DisableBGSave is enabled.
Resolved: Monthly Version 1910 (12130.20272) - Identified an issue with the links of cid: images (Outlook email-based images) were not able to be broken.
Resolved: SACT Version 1908 (11929.20436) - Identified an issue which could have caused an incorrect error message when attempting to send s/MIME encrypted e-mail.
Resolved: Monthly Version 1910 (12130.20272)
PowerPoint
- Some katakana characters may display incorrectly in a vertical text box.
Investigating: Monthly - Identified an issue which prevented hyperlink from being created when pasting text with hyperlink.
Resolved: Monthly Version 1910 (12130.20272) - Identified an issue which could cause TextRanges to become broken after pasting text into the header/footer/slide number placeholders on slide master and slide layout.
Resolved: Monthly Version 1910 (12130.20272) - Identified a perf issue on Win7 where the insert shapes gallery from the ribbon in all apps took approximately 4 seconds to appear.
Resolved: Monthly Version 1910 (12130.20272), SACT Version 1908 (11929.20396), SAC Version 1902 (11328.20468)
Project
- An assignment with zero work on a task, the task may be unable to be marked complete and will always show up at 99%.
Investigating: Monthly
Resolved: SACT Version 1908 (11929.20436) - Overallocations are not resolved by leveling
Investigating: Monthly - Identified an issue where users could get several messages when opening a read-only project.
Resolved: Monthly Version 1910 (12130.20344), SACT Version 1908 (11929.20436)
Word
- Searching from the Navigation pane may fail
Investigating: Monthly - Identified an issue in inserting files as object from OneDrive.
Resolved: Monthly Version 1910 (12130.20272)
Office Suite
- Attempting to save a file to a disconnected network share may result in issuesInvestigating: Monthly
Why Doesn't Outlook Show Attachments
Note
Outlook 365 Attachment Issues
If you need help with an issue with using Office, we recommend that you post your question on Microsoft's Answers forum or Tech Community, or you can contact support.