SP Document Library Check In/Out
When a document library from SharePoint has been added to a team that has check in/out enabled, unable to check in/out from App
This also blocks you from being able to rename a file without a clear error message stating the reason.
Paul Cooper commented
When a document is open on one persons desktop in a locally installed application e.g. open in powerpoint, other team members cannot easily see that the document is checked out to that team member. This is inefficient as team members have to wait and guess to see when a document is available to work on