I updated to AppStudio 5.3 and now my map (that was loading in 5.2) is not loading with a task status of LoadStatusFailedToLoad and an error message stating that the map is not supported because it is a version Pre 2.0. But the web map was created just 3 months ago and I saved it today. It is also working in AppStudio 5.2.
Is this a bug or is there something I need to do differently for AppStudio 5.3?