Error when importing quiz with system level questions from Moodle 2.0 course (which was imported from 1.9) to another Moodle 2.0 course on the same site

Recently successfully upgraded 1.9.10+ to 2.0.1+. In 1.9.10+, the bulk of my questions were at the system level. Also in 1.9.10+, we had several non-standard question types: drag-and-drop matching, ordering...

Here's what I did that caused the error:
In 2.0.1+, I made a new course.
From Course Administration of my new course, clicked 'Import'.
Choose the course to import from (one that was upgraded from 1.9.10+ to 2.0.1). For backup settings, I only choose 'include activities' (i.e. unchecked include blocks and include filters)

3 scenarios from here:
1) If I choose to import a resource, the import was successful
2) If I choose to import a quiz where the questions are course level, the import was successful
3) If I choose to import a quiz where the questions are site level, the import fails and I get a white screen with this message:
Fatal error: Call to undefined function restore_step_exception() in /Library/WebServer/Documents/moodle/question/type/match/backup/moodle2/restore_qtype_match_plugin.class.php on line 118

I tried several different quizzes with the same results. None of quizzes used any non-standard type question types that were on the Moodle 1.9 system.

If I create a new quiz, I can successfully use the existing questions in the question bank (the same ones that caused the import error).

Any help resolving this issue would be greatly appreciated.