Issue with immediate editing after checking in a file (Office 2016 for Mac) - Issue with immediate editing after checking in a file (Office 2016 for Mac) - Alfresco - Alfresco Office Services - Alfresco/Alfresco-Office-Services/1.5/Alfresco-Office-Services/Alfresco-Office-Services/Troubleshoot-Alfresco-Office-Services/Issue-with-immediate-editing-after-checking-in-a-file-Office-2016-for-Mac - 1.5

There is a known issue in Office 2016 for Mac, if you edit a file immediately after checking the file in. You'll see an error message saying that the file cannot be modified. The workaround is to wait a minute, and try the edit again.