Index: trunk/psModules/src/imcombine/pmSubtractionMatch.c
===================================================================
--- trunk/psModules/src/imcombine/pmSubtractionMatch.c	(revision 31056)
+++ trunk/psModules/src/imcombine/pmSubtractionMatch.c	(revision 31059)
@@ -684,5 +684,5 @@
 		    // if we failed, it might be due to the desired normWindow being larger than the current footprint.
 		    // in this case, just adjust the footprint and try again.
-		    if (tryAgain && (nTries >= 2)) {
+		    if (tryAgain && (nTries >= 5)) {
 			// unrecoverable error
 			psError(PM_ERR_STAMPS, true, "Unable to get stamp window (failure to converge).");