Post upgrade to 9.20, Scheduled reports are blank or have missing sources.
The problem is usually with duplicate records for same source/qos/target with ci_metric_id as NULL in s_qos_data table.After removing the older records where ci_metric_id = NULL for these metrics and recreating PRD reports, the scheduled reports will came up with needed source data.
Release : 9.2.0
Apply hotfix ump_reportscheduler_920_HF2
Check the s_qos_data table for duplicate entries for the same source/qos/target with ci_metric_id NULL.
Query to check for duplicate entries:
select * from s_qos_data where ci_metric_id is NULL and probe = 'cdm'
Query to remove duplicate entries (Take a proper backup and engage a DBA before running)
delete from s_qos_data where ci_metric_id is NULL and probe = 'cdm'
Once duplicate entries are removed, you should be able to see missing sources.