Cannot start a newly created windows VM from RHEV3 with "5001" Error

Issue

• Cannot start a newly created windows VM from RHEV3 with "5001" Error
• The VM is being created from a template and so can't start any VMs that are based on that template
• Seeing the following error in rhevm.log:

Error in ...lang.StringIndexOutOfBounsException: String index out of range: 10
  at java.lang.String.charAt (String.java:686)
  at java.util.regex.Matcher.appendReplacement(Matcher.java:711)
  at java.util.regex.Matcher.replaceAll(Matcher.java:813)
  at java.lang.String.replaceAll(String.java:2189)
  at org.ovirt.engine.core.compat.StringBuilderCompat.replace(StringBuilderCompat.java:22)
  at org.ovirt.engine.core.vdsbroker.vdsbroker.SysrepHandler.GetSysPrep(SysprepHandler.java:116)
  at org.oivrt.engine.core.vdsbroker.vdsbroker.CreateVmFromSysPrepVDSCommand.<init>(CreateVmFromSysPrepVdSCom...
....