Index: /issm/trunk-jpl/test/NightlyRun/test423.m
===================================================================
--- /issm/trunk-jpl/test/NightlyRun/test423.m	(revision 14598)
+++ /issm/trunk-jpl/test/NightlyRun/test423.m	(revision 14599)
@@ -32,6 +32,10 @@
 element_on_iceshelf_soft=(md.results.TransientSolution.MaskElementonfloatingice);
 
+md.groundingline.migration='SubelementMigration';
+md=solve(md,TransientSolutionEnum());
+element_on_iceshelf_subelement=(md.results.TransientSolution.GLlevelset);
+
 %Fields and tolerances to track changes
-field_names     ={'ElementOnIceShelfAgressive','ElementOnIceShelfSoft'};
-field_tolerances={1e-13,1e-13};
-field_values={element_on_iceshelf_agressive,element_on_iceshelf_soft};
+field_names     ={'ElementOnIceShelfAgressive','ElementOnIceShelfSoft','ElementOnIceShelfSubelement'};
+field_tolerances={1e-13,1e-13,1e-13};
+field_values={element_on_iceshelf_agressive,element_on_iceshelf_soft,element_on_iceshelf_subelement};