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![Attachment Attachment](https://o365info.com/wp-content/uploads/ngg_featured/Troubleshooting-Outlook-Synchronization-Problems.png)
![Open Open](https://cdn.ablebits.com/_img-blog/outlook-not-responding-solutions/disable-outlook-addins.png)
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.
Once your Outlook.com account has been upgraded, you’ll need to reconnect Outlook 2016 or Outlook 2013 to your Outlook.com account to ensure the best experience and fix issues. To check if your account has been upgraded, login to your account through a web browser and compare your mailbox with the images below. Aug 16, 2019 Outlook 365 attachment issues HI, We have an issue since migrating to office365 affecting multiple users. When you add a calendar entry with an attachment convert to RTF then Ctrl S to save 1 time out of 3 it removes the attachments? 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. Apr 08, 2019 If you’ve got an Office 365 subscription, then there might be times you need help from Microsoft. Here’s how to log a ticket from a client app, from a web app, or through your Office 365 account. All of these methods will create a ticket that goes to Microsoft support, but whichever way you log a ticket, you’ll need to be online. Jul 01, 2020 A Bug Fix update has been released for Outlook for Microsoft 365 (Current Channel) and it comes with 7 highlighted fixes for Outlook and another 7 for other Office Apps that are part of Microsoft 365. The following issues have been resolved in Outlook.
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) Vw radio code calculator download. - 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
Microsoft Office 365 Outlook Help
- 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) - 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
- Latest version of media player. 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)
![Attachment Attachment](https://o365info.com/wp-content/uploads/ngg_featured/Troubleshooting-Outlook-Synchronization-Problems.png)
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
Note
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.
-->Problem
When Office 365 users try to open or view attachments in email messages in Outlook Web App, they experience the following symptoms:
- In Office 365, the attachment isn't displayed in the message. Instead, a generic placeholder, such as '1 Attachment' is displayed, and this can't be opened.
- When users try to view attachments in Office 365, they receive the following error message: Access to attachments has been blocked. Blocked attachments: <FileName>.
Cause
![Open Open](https://cdn.ablebits.com/_img-blog/outlook-not-responding-solutions/disable-outlook-addins.png)
This issue occurs if the attachment is blocked by Outlook Web App. By default, Outlook Web App blocks attachments that have the following file name extensions:
vsmacros, msh2xml, msh1xml, ps2xml, ps1xml, mshxml, gadget, mhtml, psc2, psc1, msh2,msh1, aspx, xml, wsh, wsf, wsc, vsw, vst, vss, vbs, vbe, url, tmp, shs, shb, sct,scr, scf, reg, pst, ps2, ps1, prg, prf, plg, pif, pcd, ops, mst, msp, msi, msh,msc, mht, mdz, mdw, mdt, mde, mdb, mda, maw, mav, mau, mat, mas, mar, maq, mam,mag, maf, mad, lnk, ksh, jse, its, isp, ins, inf, htc, hta, hlp, fxp, exe, der,csh, crt, cpl, com, cmd, chm, cer, bat, bas, asx, asp, app, adp, ade, ws, vb, js
Solution
Change the Outlook Web App mailbox policy to include and exclude the file types that you want.
The following is an example of the Windows PowerShell commands to remove the .xml file type from the BlockedFileTypes and BlockedMimeTypes lists and add it to the AllowedFileTypes and AllowedMimeTypes lists: Segger j flash arm keygens and hack.
Things to consider:d
- It may take several minutes before changes to the Outlook Web App policy take effect.
- Be aware that by changing the Outlook Web App mailbox policy to include file types that are blocked by default, you may make your system more vulnerable to security threats.
Workaround
Direct users to compress the files that they intend to send (for example, as a .zip file) and then send the compressed files as attachments.
More information
Office 365 Outlook Attachment Problems Today
Still need help? Go to Microsoft Community.