When I create view with Answer field I get an error.

Hi there,
I tried to use latest Quiz and Views modules on my local and remote servers, but I get in both cases the same problem.

I create view, then I add field User (it is OK), after it I adding field Answer and immediately I get Ajax error in alert, then view is crash.
When I looked into Recent log messages I saw next things:

Notice: Trying to get property of non-object in quiz_views_handler_field_quiz_question_result_answer->pre_render() (line 51 of F:\OpenServer\domains\dru7.loc\sites\all\modules\quiz\includes\views\handlers\quiz_views_handler_field_quiz_question_result_answer.inc).
Notice: Undefined index: in quiz_views_handler_field_quiz_question_result_answer->pre_render() (line 51 of F:\OpenServer\domains\dru7.loc\sites\all\modules\quiz\includes\views\handlers\quiz_views_handler_field_quiz_question_result_answer.inc).
Notice: Undefined property: stdClass::$result_id in quiz_views_handler_field_quiz_question_result_answer->pre_render() (line 44 of F:\OpenServer\domains\dru7.loc\sites\all\modules\quiz\includes\views\handlers\quiz_views_handler_field_quiz_question_result_answer.inc).

I tried to use dev versions Views and Quize, but result was the same.
The site have minimum of modules and use default theme Bartik.
No hacks, no extra coding, no custom modules.

Thx for any help.
regards