Hi,
Hyperion requires a lot of correlations to be done. Please check the following post:
New HP LoadRunner content on HPLN – correlation rules for Oracle Hyperion
I guess that you will need to make additional correlations apart from the ones which are found by Design studio and the ones available as correlation rules.
You can add web_reg_find function to check for a specific string which will only appears after log in was successful.
Additionally in snapshot view please compare the recording and reply snapshots up to the log in steps together with the requests and responses during recording and replay for dynamic values.
Kind regards,