PostgreSQL pg_largeobject table still contains deleted objects in RHPAM

Issue

• PostgreSQL data keeps increasing. pg_largeobject table is not cleaned up even if process instances are completed.
• I get the following error after executing vacuumlo.

Caused by: org.hibernate.HibernateException: Unable to access lob stream
    at org.hibernate.type.descriptor.java.DataHelper.extractString(DataHelper.java:285)
    at org.hibernate.type.descriptor.java.StringTypeDescriptor.wrap(StringTypeDescriptor.java:89)
    at org.hibernate.type.descriptor.java.StringTypeDescriptor.wrap(StringTypeDescriptor.java:39)
    at org.hibernate.type.descriptor.sql.ClobTypeDescriptor$1.doExtract(ClobTypeDescriptor.java:60)
    at org.hibernate.type.descriptor.sql.BasicExtractor.extract(BasicExtractor.java:64)
        ...
Caused by: org.postgresql.util.PSQLException: ERROR: large object 41565 does not exist
    at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2270)
    at org.postgresql.core.v3.QueryExecutorImpl.receiveFastpathResult(QueryExecutorImpl.java:672)
    at org.postgresql.core.v3.QueryExecutorImpl.fastpathCall(QueryExecutorImpl.java:501)
    at org.postgresql.fastpath.Fastpath.fastpath(Fastpath.java:109)