Stack trace: java.lang.AssertionError
at org.apache.lucene.codecs.lucene90.IndexedDISI$Method$1.advanceExactWithinBlock(IndexedDISI.java:567) at org.apache.lucene.codecs.lucene90.IndexedDISI.advanceExact(IndexedDISI.java:461) at org.apache.lucene.codecs.lucene90.Lucene90DocValuesProducer$SparseNumericDocValues.advanceExact(Lucene90DocValuesProducer.java:453) Lucene 9.80 with a 9.80 index. Everything seems to work fine if I run it with assertions disabled. This is a large project which I can’t share. CheckIndex didn’t find any problems. Erel