ArcGIS Field Maps mobile app displays the radio button question incorrectly after removing a default value.

Workaround

1. In ArcGIS Field Maps designer, select the question on the form.
2. Edit the list and take screenshot if needed.
3. Delete the list.
4. Switch input type to radio button.
5. Create a new list and add screenshotted options back in.
6. Save the changes.
7. Open in the ArcGIS Field Maps mobile app.

The question is displayed correctly again.

Steps to Reproduce