Index: /issm/trunk-jpl/src/m/io/loadvars.py
===================================================================
--- /issm/trunk-jpl/src/m/io/loadvars.py	(revision 21258)
+++ /issm/trunk-jpl/src/m/io/loadvars.py	(revision 21259)
@@ -4,4 +4,5 @@
 from netCDF4 import Dataset
 from netCDF4 import chartostring
+from re import findall
 from os import path
 from whichdb import whichdb
@@ -89,5 +90,8 @@
 				if classtype[mod][0]=='list':
 					keylist=[key for key in curclass.groups]
-					steplist=[int(key) for key in curclass.groups]
+					try:
+						steplist=[int(key) for key in curclass.groups]
+					except ValueError:
+						steplist=[int(findall(r'\d+',key)[0]) for key in keylist]
 					indexlist=[index*(len(curclass.groups)-1)/max(steplist) for index in steplist]
 					listtype=curclass.groups[keylist[0]].classtype