The first issue was the _X problem on Android. I've made it so that this is corrected automatically when code is generated from design mode. (b9951)
I'm going to leave the second issue alone for now, since it's just a matter of determining the appropriate settings. For now we can rely on Ask a Question and the Help Desk, but in the future we should do a better job of determining ahead of time what common groups of settings will or won't work.