View of a site opens the channel manager perspective, not a view of the document

Reproduced on http://cms.demo.test.onehippo.com through the smoketest and manual, not reproduced on local Go Green.
On cms.demo.test.onehippo.com it initially does not happen, but after running the smoketest several times the issue appears.

1) Login on http://cms.demo.test.onehippo.com as admin/admin
2) Open the browse perspective and go to /content/documents/hippogogreen/events/2014/10/west-coast-green-symposium
3) Click View/English Website
Expected: View of document as english website
Actual Channel Manager main page opens instead of preview

Stacktrace:
14.01.2014 11:07:37 WARN [org.hippoecm.hst.container.HstFilter.doFilter():539] org.hippoecm.hst.core.container.ContainerException for '/site/_cmsrest/channels/%23canUserModifyChannels':
org.hippoecm.hst.core.container.ContainerException: java.lang.RuntimeException: Could not decrypt credentials
at org.hippoecm.hst.core.container.HstRequestProcessorImpl.processRequest(HstRequestProcessorImpl.java:84)
at org.hippoecm.hst.container.HstFilter.doFilter(HstFilter.java:519)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.hippoecm.hst.container.XSSUrlFilter.doFilter(XSSUrlFilter.java:49)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.RuntimeException: Could not decrypt credentials
at org.onehippo.sso.CredentialCipher.decrypt(CredentialCipher.java:158)
at org.onehippo.sso.CredentialCipher.decryptFromString(CredentialCipher.java:133)
at org.hippoecm.hst.core.container.CmsRestSecurityValve.invoke(CmsRestSecurityValve.java:67)
at org.hippoecm.hst.core.container.HstSitePipeline$Invocation.invokeNext(HstSitePipeline.java:271)
at org.hippoecm.hst.core.container.CmsHostRestRequestContextValve.invoke(CmsHostRestRequestContextValve.java:31)
at org.hippoecm.hst.core.container.HstSitePipeline$Invocation.invokeNext(HstSitePipeline.java:271)

Info on shared secrets:
http://www.onehippo.org/7_8/library/deployment/supported-deployments.html