debugging

src/main/java/com/elphel/imagej/cuas/CuasMotion.java

@@ -5660,8 +5660,8 @@ public class CuasMotion {
 										bbox_ba[ba][fnseq][nTile][ntarg] = new double[] {cent_x, cent_y, cent_x, cent_y};
 									}	
 								}
+								target_grp[ba][fnseq][nTile] = new int [targets.length];
 								if (first) {
-									target_grp[ba][fnseq][nTile] = new int [targets.length];
 									for (int ntarg = 0; ntarg < targets.length; ntarg++) {
 										target_grp[ba][fnseq][nTile][ntarg] = agrp.getAndIncrement(); // unique group index
 									}