I tried to do a simple Bible subset search looking through some journals for references to either Ps 14:7 OR Ps 53:6. Most of my returns were what one would expect, but two returns were wholly erroneous.
One linked to just basic text (2 letters not found anywhere in my search string) and the other linked to text across 3 boxes including references not at all included in my search string as well as basic text.
In both cases the desired reference (both Ps 14:7) may be found relatively close on the same page. The first erroneous result in JETS is actually found in the preceding foot note. The second one is in another box in the table on the same page, with with many other references in between.
I know there have been issues with formatting & tagging in the journals but I don't see how especially the second one could be a formatting/tagging issue.
Here is a screen short of the search window with the erroneous results highlighted.