ID4243: Could not create a SecurityToken. A token was not found in the token cache and no cookie was found in the context.

ID4243: Could not create a SecurityToken. A token was not found in the token cache and no cookie was found in the context.

You are using reference mode tokens because you have Reference mode enabled on your SessionAuthenticationModule and you are jumping between multiple processes or servers trying to re-use the token reference.

Solution:

Do not use reference mode on your tokens or implement your own centralised SecurityTokenCache that can be used between multiple processes.