Session expired error when creating dataset

Question

Hi all,
I am using BI 11.1.1.6.
I am unable to create a specifically one data set where when I click on OK after giving in the query and dataset name, it says "session expired, please login again". I am able to create other datasets querying from the same schema and tables however this one specifically keeps failing with the same error.
Is this a bug or am I doing something wrong? The query is as shown below however please note that I am able to put in this query in sqldeveloper and even get data output.
Thank you.
SELECT
proj.project_title,
proj.project_name,
rqmt.application_no,
rqmt.amount_certified,
rqmt.period_to,
rqmt.prev_additions,
rqmt.prev_amount_cert,
rqmt.prev_deductions,
rqmt.sub_total_addtns,
rqmt.sub_total_ddctns,
rqmt.sum_to_date,
rqmt.total_additions,
rqmt.total_balance,
rqmt.total_deductions,
rqmt.total_prev_appl,
rqmt.contractor_claim_amount,
cnmt.document_number,
rqmt.orig_contrct_sum,
rqmt.contractor_commit_total_amount,
(select sum(this_period) + sum(PREV_APPLCATIONS) from rqdt where rqdt.parent_key = rqmt.master_key and RETENTION_LINE <>1)
FROM proj,
rqmt,
cnmt
WHERE ( proj.project_name = rqmt.project_name )
and ( rqmt.cntr_master_key = cnmt.master_key )
and (( cnmt.document_type = 'INITIALCONTRACTCOMMITMENT' ) )
AND rqmt.IT_IS_THE_LATEST = 1;

Answer 1

hey there, sorry i did not but the error stopped after a few days, no idea why and how