Yes/No and Picker bugs

With a recent release of the iPhone and iPad apps, I have the following problems.

Yes/No-type items: Yes and No no longer appear in the app as choices to click. However, responding “yes” or “no” with voice works correctly.

Picker-type items: Similarly, the buttons no longer appear in the app. And I have never been able to get voice response to work, either with “Goto Button 1” or the button labels as described in Navigating Picker items with your voice.

I have version 6.3.1.556 installed on both devices.

Can you please provide a fix or workaround?

(Sorry for dup post; this one has the correct category!)

I have same problem on previously working fine picker items with buttons and custom additional voice label options per button. The buttons no longer appear.
What is strange is that the snipets of 'Branching Emegency v2 (Form items) still work with buttons