SYMPTOM:
The radio list input displays an extra empty button when running a Transaction Services document with Strategy Mobile for iPad application 9.5, as shown below:

Run the same Transaction Services document in Web, note that there is no extra button, as shown below:

CAUSE:
This is a behavior change in Strategy Mobile for iPad application 9.5. Tapping on this empty button will clear the selection and bring back the default values.
ACTION:
Currently there is an enhancement raised to disable this feature to avoid the inconsistent behavior between Web and Mobile. Strategy will continue to investigate and post updates as soon as they are available.
KB236815