I've noticed that when I save a draft in the IOS App, it doesn't automatically update it in memory.
If I go back to the list of posts and select that draft, I get the version that was current when I first opened the app, not the version I just updated.
In order to be sure I have the correct and most recent version, I have to manually refresh the list of posts every time, before I load anything.
If I don't I often find I rewrite the newer version on the server with the older one.
The app also closes unexpectedly very often when saving a draft.