When editing in the Stack Exchange Android app and navigating away to get some reference URLs the text is gone when I go back into the app.
Seems like the edit isn't kept in memory. Can you please save them in memory? (drafts)
I've just experienced this in Android App v1.0.50 on a HTC One running Android 4.4.3.
Here's how to reproduce it:
This is kind of like if my edit of this answer would be reset and forgotten if I alt+tabbed during editing to another window.
If you were making a non-trivial edit, you might feel pretty annoyed by this point. Luckily for me I was just changing a couple of words in an answer when I noticed this, and I switched to my browser to check one of the words.
Note that this does not happen when editing questions. Editing a question preserves the edit properly.