When I debug my Xamarin.iOS project from Visual Studio, it builds, installs on the simulator, and launches the app without issue. But on launching, I\'m seeing a bunch of D
Check your Configuration Manager (the drop down with Debug, Release etc) and check that all the projects are being built. It usually unchecks all the projects you are working with for some unknown reason.
This means that it isn't rebuilding all the projects and it hence shows an old version.
As per your comment of rebuilding each project, this is a classic sign of the projects not being checked to be built on run and why you have to do it manually.