Recently we have upgraded from Alfresco 5.0 to 5.2. Everything is running fine except for one strange behavior that we found. When I am searching for a keyword name suppose "ABC" I can see the results for ABC in search suggestions but when I hit enter with ABC it is not displaying any results. However other keywords that I am searching are just running fine. Problem is associated with one keyword which has a lot of documents. Can anyone please suggest what is causing this. I didn't see any type of solr error in log file.