13/10/2022 09:48:00 AM (BST)
NHSmail Reference : INC32121855
Microsoft Reference : TM445479
Issue Status : RESOLVED
Issue Description : Users may see distorted file names when downloading files that have UTF-8 encoded characters in the name.
More info : The impact only occurs when the files have UTF-8 encoded characters in the name and are downloaded from channels in the Microsoft Teams desktop client. Downloading files elsewhere in the Microsoft Teams desktop and Mac clients (such as from chats) and from the Microsoft Teams web app shows the file names correctly. While we’re focused on remediation, users can use the “Open in SharePoint” option at the top of the Microsoft Teams desktop and Mac clients, which will allow the files to be downloaded with the correct names from SharePoint Online.
Scope of impact : This issue may affect any users who download files with UTF-8 encoded characters in the name from channels in the Microsoft Teams desktop and Mac clients.
Final Update : 01/12/2022 17:06:00 PM – Microsoft has verified after extensive monitoring and confirming with some affected users, that the fix has fully resolved the underlying issue and impact has been remediated.
Root Cause : A recent update meant to improve the encoding for file names contains a code issue which is causing files with UTF-8 encoded characters to produce distorted file names upon download via channels in the Microsoft Teams desktop client.