When running retrieve multiple items from an index with the nextunique or prevunique direction, we iterate over items in a while loop.

3. Let i be 0.
4. While i is less than rangeRecordsLength, then:
   1. Increase i by 1.
   2. if record’s size is equal to count, then break.
   3. If the result of comparing two keys using the keys from |rangeRecords[i]| and |rangeRecords[i-1]| is equal, then continue.
   4. Else append |rangeRecords[i]| to records.

This means

• range_records[0] will never be added to records.
  • We always start with i = 1
• In the last iteration, we will try to access range_records[length], and that is out of bounds.
  • We check for less than, then increment it to be equal

Suggested solution:

• Change While i is less than range records length to While i is less than range records length - 1
• Add new step between current 3 and 4:
  • Append |range records[0]| to records.