Can't see prompts variables when send error message

Hi guys,

I can't see the prompts variables when I send a APPLICATION.createErrorMessage("xxxx") on "On Before Prompts Submit" event.

I have a DS application  (1.6 SP1) based on universe (BIP 4.1 SP2).

The datasource has optional prompts in the query specification. I put some validations on "On Before Prompts Submit" event and I send an error message due some wrong situation.

But after the error, I don't see the prompts to correct the entries.

Please any idea?

Thanks in advance!

Andrea.