FBA Roles Doesn't work With SharePoint SP1

Question

I have tried to implement FBA roles into Sharepoint Groups and when I login with user in FBA role i have success login but the Target Audience dosen't work .

Now My Qustion : Is that poblem in Sharepoint SP1

note : i have tried to do it that with Sharepoint SP2 and I have Success for all.

Thanks in advanced