OLE Error 800400CF while generating graph

This is the query that is ran in the backend for the graph.

SELECT TC_TESTCYCL_ID FROM TESTCYCL INNER JOIN ((SELECT -1 AS TSC_BL_ID, TSC_ATTACHMENT,TSC_CREATED_BY,TSC_CREATION_DATE,TSC_DATA_FILTERING,TSC_DATA_OBJ,TSC_DATA_STATE,TSC_DESC,TSC_EXEC_STATUS,TSC_ID,TSC_NAME,TSC_TEST_ID,TSC_USER_01,TSC_VC_CHECKOUT_USER_NAME,TSC_VTS FROM TEST_CONFIGS) UNION ALL (SELECT TSC_BL_ID,TSC_ATTACHMENT,TSC_CREATED_BY,TSC_CREATION_DATE,TSC_DATA_FILTERING,TSC_DATA_OBJ,TSC_DATA_STATE,TSC_DESC,TSC_EXEC_STATUS,TSC_ID,TSC_NAME,TSC_TEST_ID,TSC_USER_01,TSC_VC_CHECKOUT_USER_NAME,TSC_VTS FROM BL_TEST_CONFIGS)) TEST_CONFIGS_TABLE ON TSC_ID=TC_TEST_CONFIG_ID INNER JOIN ((SELECT -1 AS TS_BL_ID, TS_ATTACHMENT,TS_BASE_TEST_ID,TS_BPTA_CHANGE_DETECTED,TS_CREATION_DATE,TS_DESCRIPTION,TS_DEV_COMMENTS,TS_ESTIMATE_DEVTIME,TS_EXEC_STATUS,TS_NAME,TS_ORDER_ID,TS_PATH,TS_PROTOCOL_TYPE,TS_RESPONSIBLE,TS_RUNTIME_DATA,TS_SERVICE_TEST_MODE,TS_STATUS,TS_STEPS,TS_STEP_PARAM,TS_SUBJECT,TS_TEMPLATE,TS_TESTING_FRAMEWORK,TS_TESTING_TOOL,TS_TEST_ID,TS_TEST_VERSION,TS_TEST_VER_STAMP,TS_TEXT_SYNC,TS_TIMEOUT,TS_TYPE,TS_USER_01,TS_USER_02,TS_USER_03,TS_USER_04,TS_USER_05,TS_USER_06,TS_USER_07,TS_USER_08,TS_USER_09,TS_USER_10,TS_USER_11,TS_USER_12,TS_USER_13,TS_USER_14,TS_USER_15,TS_USER_16,TS_USER_17,TS_USER_18,TS_USER_19,TS_USER_20,TS_USER_21,TS_USER_22,TS_USER_23,TS_USER_24,TS_USER_HR_01,TS_USER_HR_02,TS_USER_HR_03,TS_USER_HR_04,TS_USER_HR_05,TS_USER_HR_06,TS_UT_CLASS_NAME,TS_UT_METHOD_NAME,TS_UT_PACKAGE_NAME,TS_VC_CHECKIN_COMMENTS,TS_VC_CHECKIN_DATE,TS_VC_CHECKIN_TIME,TS_VC_CHECKIN_USER_NAME,TS_VC_COMMENTS,TS_VC_CUR_VER,TS_VC_DATE,TS_VC_END_AUDIT_ACTION_ID,TS_VC_START_AUDIT_ACTION_ID,TS_VC_STATUS,TS_VC_TIME,TS_VC_USER_NAME,TS_VC_VERSION_NUMBER,TS_VTS,TS_WORKING_MODE FROM TEST) UNION ALL (SELECT TS_BL_ID,TS_ATTACHMENT,TS_BASE_TEST_ID,TS_BPTA_CHANGE_DETECTED,TS_CREATION_DATE,TS_DESCRIPTION,TS_DEV_COMMENTS,TS_EI_EFFORT,TS_EI_PRIORITY,TS_ESTIMATE_DEVTIME,TS_EXEC_STATUS,TS_NAME,TS_ORDER_ID,TS_PATH,TS_PROTOCOL_TYPE,TS_RESPONSIBLE,TS_RUNTIME_DATA,TS_SERVICE_TEST_MODE,TS_STATUS,TS_STEPS,TS_STEP_PARAM,TS_SUBJECT,TS_TEMPLATE,TS_TESTING_FRAMEWORK,TS_TESTING_TOOL,TS_TEST_ID,TS_TEST_VERSION,TS_TEST_VER_STAMP,TS_TEXT_SYNC,TS_TIMEOUT,TS_TYPE,TS_USER_01,TS_USER_02,TS_USER_03,TS_USER_04,TS_USER_05,TS_USER_06,TS_USER_07,TS_USER_08,TS_USER_09,TS_USER_10,TS_USER_11,TS_USER_12,TS_USER_13,TS_USER_14,TS_USER_15,TS_USER_16,TS_USER_17,TS_USER_18,TS_USER_19,TS_USER_20,TS_USER_21,TS_USER_22,TS_USER_23,TS_USER_24,TS_USER_HR_01,TS_USER_HR_02,TS_USER_HR_03,TS_USER_HR_04,TS_USER_HR_05,TS_USER_HR_06,TS_UT_CLASS_NAME,TS_UT_METHOD_NAME,TS_UT_PACKAGE_NAME,TS_VC_CHECKIN_COMMENTS,TS_VC_CHECKIN_DATE,TS_VC_CHECKIN_TIME,TS_VC_CHECKIN_USER_NAME,TS_VC_COMMENTS,TS_VC_CUR_VER,TS_VC_DATE,TS_VC_END_AUDIT_ACTION_ID,TS_VC_START_AUDIT_ACTION_ID,TS_VC_STATUS,TS_VC_TIME,TS_VC_USER_NAME,TS_VC_VERSION_NUMBER,TS_VTS,TS_WORKING_MODE FROM BL_TEST)) TEST_TABLE ON (TS_TEST_ID=TC_TEST_ID AND isnull((TC_PINNED_BASELINE), (-1))=TS_BL_ID) WHERE TC_TESTCYCL_ID IN (/*P*/1554,/*P*/1561,/*P*/1562,/*P*/1555,/*P*/1556,/*P*/1559,/*P*/1558,/*P*/1557,/*P*/1560) ORDER BY TC_TEST_ORDER ASC;

This query contains two columns (TS_EI_EFFORT and TS_EI_PRIORITY) that are not available in TEST table but available in BL_TEST table which caused the issue. Once the columns are removed from BL_TEST table, the issue is resolved.