Please start a separate topic and provide more information, in particular the mapping you are using. If you mapping is complex, it would help to provide a reproducer based on our test case templates.
Note however that you are using an old version of Hibernate Search: both Search 4.3 and Search 5.5 are old, the newest version being Search 5.10, and the newest version supporting Hibernate ORM 5.0/5.1 being Search 5.6. Any problem you encounter might have been fixed in more recent versions.