Debbie Philip ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=712020%... ) *commented* on HHH-16540 ( https://hibernate.atlassian.net/browse/HHH-16540?atlOrigin=eyJpIjoiMzIxYz... ) Re: UnknownTableReferenceException for entity with Embeddable key-value in map ( https://hibernate.atlassian.net/browse/HHH-16540?atlOrigin=eyJpIjoiMzIxYz... ) Issue seems to be in class BaseSqmToSqlAstConverter.java, method visitTableGroup() being called by method visitQualifiedAttributeJoin() private Expression visitTableGroup(TableGroup tableGroup, SqmFrom<?, ?> path) { … else if (actualModelPart instanceof EmbeddableValuedModelPart) { EmbeddableValuedModelPart mapping = (EmbeddableValuedModelPart)actualModelPart; result = new EmbeddableValuedPathInterpretation(mapping.toSqlExpression(tableGroup, (Clause)this.currentClauseStack.getCurrent(), this, this.getSqlAstCreationState()), navigablePath, mapping, tableGroup); } } mapping.toSqlExpression( *tableGroup* , ..) was changed to mapping.toSqlExpression(getFromClauseAccess().findTableGroup( path.getLhs().getNavigablePath() ) in 6.2.2 This causes it to return tableGroup as entities.TestEntity (xxx).images(xxx). {element} instead of entities.TestEntity (xxx).images(xxx). scaledImages(xxx).{element} , hence throwing the exception. ( https://hibernate.atlassian.net/browse/HHH-16540#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16540#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100224- sha1:07bd2b7 )