For some reason the icon is not showing on new deployed Add-ins in Outlook, Word, Excel and PowerPoint. We have an Add-in published in AppSource. This Add-in is showing correct in the ribbon.
However, our test/development Add-in where we updated the manifest file is not showing the icon on desktop applications, but it is showing on web apps. Question is what changes has been made? We looked at the documentation but can find anything??? Question is if a change has been made to the size, format etc. 