Moving admin portlet gives NPE

When clicking on the admin portlet, and trying to move it to the left view, I get the following stacktrace (I shouldn't really get to see the admin portlet in my list either!)

500 Internal Server Error
java.lang.NullPointerException
at com.atlassian.jira.portal.PortalPageConfigurationImpl.movePortletPositionColumn(PortalPageConfigurationImpl.java:82)
at com.atlassian.jira.web.action.user.ConfigurePortal.doMoveColumnButton(ConfigurePortal.java:215)
at com.atlassian.jira.web.action.user.ConfigurePortal.doExecute(ConfigurePortal.java:179)
at webwork.action.ActionSupport.execute(ActionSupport.java:114)
at webwork.dispatcher.GenericDispatcher.executeAction(GenericDispatcher.java:113)
at webwork.dispatcher.ServletDispatcher.service(ServletDispatcher.java:161)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:336)
at com.evermind._it.doFilter(.:59)
at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:128)
at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:60)
at com.atlassian.jira.web.filters.SitemeshExcludePathFilter.doFilter(SitemeshExcludePathFilter.java:35)
at com.evermind._ir.doFilter(.:16)
at com.atlassian.core.security.SecurityFilter.doFilter(SecurityFilter.java:170)
at com.evermind._ir.doFilter(.:20)
at com.atlassian.core.security.LoginFilter.doFilter(LoginFilter.java:173)
at com.evermind._ir.doFilter(.:20)
at com.atlassian.util.filters.ProfilingFilter.doFilter(Unknown Source)
at com.evermind._ir.doFilter(.:20)
at com.atlassian.jira.web.filters.EncodingFilter.doFilter(EncodingFilter.java:53)
at com.evermind._ir.doFilter(.:20)
at com.orionserver.http.patch.PathInvalidationFilter.doFilter(PathInvalidationFilter.java:150)
at com.evermind._efb._plc(.:380)
at com.evermind._efb._adc(.:174)
at com.evermind._cs._yqb(.:614)
at com.evermind._cs._yrb(.:189)
at com.evermind._bx.run(.:62)