NoSuchFlowExecutionException with office365 apps

[privas]

Hello,

We are getting some NoSuchFlowExecutionException errors that show up when
users try to authenticate on any office 365 application (happens about 50
percent of the time) and I'm not sure where to start debugging. I noticed
this issue happened after our upgrade from 3.2.1 to the latest version. I've
tried installing a fresh version of 3.3.1 and my original 'conf' folder,
excluding 'authn' and
'/opt/shibboleth-idp/system/flows/cas/login/login-flow.xml' but I'm still
getting the error. Here is the error:

2017-06-26 16:12:20,563 - ERROR
[org.springframework.webflow.execution.repository.NoSuchFlowExecutionException:76]
-
org.springframework.webflow.execution.repository.NoSuchFlowExecutionException:
No flow execution could be found with key 'e2s1' -- perhaps this executing
flow has ended or expired? This could happen if your users are relying on
browser history (typically via the back button) that references ended flows.
        at
org.springframework.webflow.execution.repository.support.AbstractFlowExecutionRepository.getConversation(AbstractFlowExecutionRepository.java:172)
Caused by:
org.springframework.webflow.conversation.NoSuchConversationException: No
conversation could be found with id '2' -- perhaps this conversation has
ended?
        at
org.springframework.webflow.conversation.impl.ConversationContainer.getConversation(ConversationContainer.java:126)
2017-06-26 16:12:21,482 - ERROR
[org.springframework.webflow.execution.repository.NoSuchFlowExecutionException:76]
-
org.springframework.webflow.execution.repository.NoSuchFlowExecutionException:
No flow execution could be found with key 'e1s1' -- perhaps this executing
flow has ended or expired? This could happen if your users are relying on
browser history (typically via the back button) that references ended flows.
        at
org.springframework.webflow.execution.repository.support.AbstractFlowExecutionRepository.getConversation(AbstractFlowExecutionRepository.java:172)
Caused by:
org.springframework.webflow.conversation.NoSuchConversationException: No
conversation could be found with id '1' -- perhaps this conversation has
ended?
        at
org.springframework.webflow.conversation.impl.ConversationContainer.getConversation(ConversationContainer.java:126)


I'll try to up the debugging for idp.loglevel.spring but any suggestions
would be appreciated.




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