If you look at the instant details you will see that the words that are not repeated each have two Strong's numbers on them. Accordance is somehow treating them as two words which have the same English word for two Key numbers. It is a bug, but may be hard to fix without breaking another part of the search and display code for Key numbers.
You can eliminate these cases, and all the common words that don't have Key numbers, by adding a requirement that the key numbers agree. However, this will also eliminate rare cases where the same English word translated different Key numbers.