Remained from the previous commit

src/main/java/com/elphel/imagej/tileprocessor/TwoQuadCLT.java

@@ -8786,6 +8786,16 @@ if (debugLevel > -100) return true; // temporarily !
 
 							// TODO: Save continuation after failure not to retry each run
 							System.out.println("Failed to build sequence for series "+ref_index);
+							if (use_cuas) {
+								System.out.println(
+										"Aborting CUAS processing: buildSeries() returned null and no automatic recovery is defined for inconsistent IMS/orientation data.");
+								System.out.println(
+										"See the per-scene *-SYSTEM_OUT.log and, if needed, the corresponding egomotion CSV around the reported failure.");
+								System.out.println("\n ----- PROCESSING SCENE SEQUENCE "+nseq+" (last is "+(num_seq-1)+") ABORTED due to invalid CUAS input data in "+
+										IJ.d2s(0.000000001*(System.nanoTime()-start_time_seq),3)+" sec ("+
+										IJ.d2s(0.000000001*(System.nanoTime()-start_time_all),3)+" sec from the overall start)\n");
+								return;
+							}
 							if (start_ref_pointers[0] < (min_num_scenes-1)) {
 								break;
 							}