Set  "Grading type" to "Longest ordered subset".

Bugs:

• In fact, this grading type is the "Longest contiguous subset" grading type. The names of these two grading types have been swapped.
• Correct responses include several contiguous subsets, in contradiction with the description of the grading type (see the "Help with Grading type" tooltip).
• Correct responses include subsets consisting of only one item. This is incorrect.

Set  "Grading type" to "Longest contiguous subset".

Bugs:

• In fact, this grading type is the "Longest ordered subset" grading type. The names of these two grading types have been swapped.