After upgrading to latest confluence, Jira macros fails

Upgraded to Confluence 5.5.4, and Jira version 6.2.7, the Jira macro in Confluence displays an error, but only for certain users - it appears to be OK for admin users:

java.io.IOException: Error on line 1422: The element type "customfieldvalues" must be terminated by the matching end-tag "".

This error also appears in the Jira log:

2014-08-03 01:51:48,145 http-bio-8080-exec-15 ERROR myuser 111x55708x1 1lzxw01 10.1.105.21,10.1.105.21 /sr/jira.issueviews:searchrequest-xml/temp/SearchRequest.xml [fieldsecurity.filter.processor.IssueXMLViewProcessor] The element type "customfieldvalues" must be terminated by the matching end-tag "</customfieldvalues>".
org.xml.sax.SAXParseException; lineNumber: 741; columnNumber: 3; The element type "customfieldvalues" must be terminated by the matching end-tag "</customfieldvalues>".
at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)
at javax.xml.parsers.DocumentBuilder.parse(Unknown Source)
at com.quisapps.jira.fieldsecurity.filter.processor.IssueXMLViewProcessor.process(IssueXMLViewProcessor.java:48)
at com.quisapps.jira.fieldsecurity.filter.FieldSecurityFilter.doFilter(FieldSecurityFilter.java:127)
at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:74)
at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:42)
at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:77)
at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:63)