Error in v.12 with Forgot Login emails

Hi there,

We just converted our test environment to v.12 and I'm getting the following error when I try to use the Forgot Login email functionality:

A .NET Framework error occurred during execution of user-defined routine or aggregate "TXP_SEND_CREDENTIALS": 

System.Exception: The INSERT statement conflicted with the FOREIGN KEY constraint "FK_T_WEB_SESSION_VARIABLE_t_web_session". The conflict occurred in database "impresario", table "dbo.t_web_session_Session", column 'SessionKey'.

The statement has been terminated.

System.Exception: at TessituraSQLServices.StoredProcedures.SendCredentials(SqlString sAPIAddress, SqlString sOrgName, SqlString sEmail, SqlInt32 iLoginType, SqlBoolean bResetTempFlag, SqlBoolean bUseToken, SqlBoolean bGenerateNewPassword, SqlInt32 iTemplateID)

I'm not seeing any other posts about this error yet. Has anyone gotten this? Seems like we have duplicate session keys? or the tables somehow got out of sync?

any help welcome.

thank you,

frannie