diff --git a/broker/OpenAPIConvert.cpp b/broker/OpenAPIConvert.cpp
index 64091e313..0df2060ce 100644
--- a/broker/OpenAPIConvert.cpp
+++ b/broker/OpenAPIConvert.cpp
@@ -1019,9 +1019,6 @@ IndexingSettings Convert(const org::openapitools::server::model::Indexing_settin
     ret.UnitCellDistTolerance(input.getUnitCellDistTolerance());
     ret.ViableCellMinSpots(input.getViableCellMinSpots());
     ret.IndexIceRings(input.isIndexIceRings());
-    ret.RotationIndexing(input.isRotationIndexing());
-    ret.RotationIndexingAngularStride_deg(input.getRotationIndexingAngularStrideDeg());
-    ret.RotationIndexingMinAngularRange_deg(input.getRotationIndexingMinAngularRangeDeg());
     ret.BlockingBehavior(input.isBlocking());
     return ret;
 }
@@ -1037,9 +1034,10 @@ org::openapitools::server::model::Indexing_settings Convert(const IndexingSettin
     ret.setThreadCount(input.GetIndexingThreads());
     ret.setUnitCellDistTolerance(input.GetUnitCellDistTolerance());
     ret.setViableCellMinSpots(input.GetViableCellMinSpots());
-    ret.setRotationIndexing(input.GetRotationIndexing());
-    ret.setRotationIndexingAngularStrideDeg(input.GetRotationIndexingAngularStride_deg());
-    ret.setRotationIndexingMinAngularRangeDeg(input.GetRotationIndexingMinAngularRange_deg());
+    // Deprecated: the broker runs no rotation indexer (rugnux live does), so these report the old defaults.
+    ret.setRotationIndexing(false);
+    ret.setRotationIndexingAngularStrideDeg(0.5);
+    ret.setRotationIndexingMinAngularRangeDeg(20.0);
     ret.setBlocking(input.GetBlockingBehavior());
 
     org::openapitools::server::model::Geom_refinement_algorithm refinement;
diff --git a/receiver/JFJochReceiver.cpp b/receiver/JFJochReceiver.cpp
index 9ffa7badc..89e0f492b 100644
--- a/receiver/JFJochReceiver.cpp
+++ b/receiver/JFJochReceiver.cpp
@@ -173,18 +173,6 @@ void JFJochReceiver::SendEndMessage() {
 
     message.az_int_result["dataset"] = plots.GetAzIntProfile();
 
-    const auto rotation_indexer_ret = indexer.FinalizeRotationIndexing();
-    if (rotation_indexer_ret.has_value()) {
-        message.rotation_lattice = rotation_indexer_ret->lattice;
-        message.rotation_lattice_type = LatticeMessage{
-            .centering = rotation_indexer_ret->search_result.centering,
-            .niggli_class = rotation_indexer_ret->search_result.niggli_class,
-            .crystal_system = rotation_indexer_ret->search_result.system
-        };
-        message.rotation_extra_lattices = rotation_indexer_ret->extra_lattices;
-        rotation_indexing_lattice = rotation_indexer_ret->lattice;
-        rotation_indexing_lattice_type = message.rotation_lattice_type;
-    }
     message.unit_cell = indexer.GetConsensusUnitCell();
     // The collection does not stop for an indexer that failed - the images are written regardless - but
     // its indexing rate is then not a statement about the crystal, and the log has to say so.
@@ -193,8 +181,7 @@ void JFJochReceiver::SendEndMessage() {
             indexer.RethrowIndexerError();
         } catch (const std::exception &e) {
             logger.Error("Indexing failed {} times in this collection, first with: {}. Those attempts are "
-                         "left out of the indexing rate, and a rotation lattice may be missing for the same "
-                         "reason", n, e.what());
+                         "left out of the indexing rate", n, e.what());
         }
     }
 
@@ -235,11 +222,6 @@ JFJochReceiverOutput JFJochReceiver::GetFinalStatistics() const {
     ret.status = GetStatus();
     ret.writer_err = writer_error;
     ret.scan_result = scan_result.GetResult();
-    ret.scan_result.rotation_lattice = rotation_indexing_lattice;
-    if (rotation_indexing_lattice_type) {
-        ret.scan_result.rotation_crystal_system = rotation_indexing_lattice_type->crystal_system;
-        ret.scan_result.rotation_centering = rotation_indexing_lattice_type->centering;
-    }
     ret.images_written = images_written;
     ret.processing_time = plots.GetMeanProcessingTime();
     return ret;
diff --git a/receiver/JFJochReceiver.h b/receiver/JFJochReceiver.h
index f0f76db20..559b43a3b 100644
--- a/receiver/JFJochReceiver.h
+++ b/receiver/JFJochReceiver.h
@@ -86,8 +86,6 @@ protected:
     std::mutex max_delay_mutex;
 
     IndexAndRefine indexer;
-    std::optional<CrystalLattice> rotation_indexing_lattice;
-    std::optional<LatticeMessage> rotation_indexing_lattice_type;
 
     std::string writer_error;
 
diff --git a/receiver/JFJochReceiverRugnux.cpp b/receiver/JFJochReceiverRugnux.cpp
index 383da3146..eb0bd65a5 100644
--- a/receiver/JFJochReceiverRugnux.cpp
+++ b/receiver/JFJochReceiverRugnux.cpp
@@ -713,7 +713,7 @@ float JFJochReceiverRugnux::GetEfficiency() const {
 JFJochReceiverOutput JFJochReceiverRugnux::GetFinalStatistics() const {
     JFJochReceiverOutput ret = JFJochReceiver::GetFinalStatistics();
     ret.analysis_warning = skipped_warning;
-    // The receiver's own rotation indexer sees no image here: the lattice is rugnux's.
+    // The rotation lattice is rugnux's: the receivers run no rotation indexer of their own.
     std::unique_lock ul(rugnux_m);
     if (rugnux_result) {
         const EndMessage &r = rugnux_result->end_message;