SUMMARY:
This issue has been classified as a defect by Strategy. A solution/code fix for this issue is not available in the current releases but is being reviewed for a future Strategy release.
SYMPTOM:
In Strategy Mobile, emerging selection window with radio button selector in Survey Widget is closing unexpectedly when the mobile device is rotated 90º.
STEPS TO REPRODUCE:
1. Create a document and configure a survey widget with this data as shown in this image

2. Run the document in iPad and on Section 1 tap in the option "Tap to choose" and you can notice an information window.
3. Rotate the device 90º and the information window will close automatically.
Once rotating the mobile device, all kinds of the selection window, like check-box, dropdown list, radio button, likert-scale item will be dismissed automatically.
CAUSE:
This is a know issue in Strategy Mobile 9.x - 10.x. Currently this issue is being reviewed for feasibility for a potentical code fix in an upcoming Strategy release.
ACTION:
Contact Strategy Technical Support for an update of this issue.
WORKAROUND:
Disable the rotation of the mobile device.
The Strategy Internal Reference number for the behavior described in this article is TQMS 965522.