Search is not working properly while searching the content in one of the SG. The SG has many pages and other SGs. When we search for a empty value, it returns only 10 results. Also, the SG has one child SG as 'H10'. When we search 'H10' we get no results.
This happens only for this particular SG. it works fine for all other content.
P.S. We have not re-indexed the search. Newly added items do appear in search.