Response Index - Can't duplicate results

Both of the last two numbers represent attempts within a session, but they have distinct meanings:

Example 1:
Scene1_QuestionDraw11_Slide3_PickOne_0_0
Scene1_QuestionDraw11_Slide3_PickOne_0_1
Scene1_QuestionDraw11_Slide3_PickOne_0_2 //third attempt

The last number indicates the individual attempts on the same question during the current quiz.

Example 2:
Scene1_QuestionDraw11_Slide3_PickOne_0_0
Scene1_QuestionDraw11_Slide3_PickOne_1_0
Scene1_QuestionDraw11_Slide3_PickOne_2_0 // third attempt

The second-to-last number indicates a number of retries initiated via a “Retry”  function from a Result slide within a session. 

These identifiers are reset when the session is closed and relaunched. However, cmi.interaction.n.id identifier must be unique for the learner across all sessions.

Example:
(cmi.interactions.1.id, Scene1_QuestionDraw11_Slide3_PickOne_0_0, cmi.interactions.n.id, 1, );
(cmi.interactions.2.id, Scene1_QuestionDraw11_Slide3_PickOne_0_0, cmi.interactions.n.id, 2, )