Looks fine, I can see the Input field having Session.variable1.
The only Thing I can guess now is the value might have not been saved into session or has been overwritten in some-other screen.
I would suggest going into Debugging mode in both screens and noticing If there is value in this session variable
Need more details, Please share oml if possible.
Note : Make sure there is no confidential code before sharing.
Regards
Raghu
