In this case there are multiple tables in the report datasets. So if one of the tables are missing, but the main one is there - dbo.tbl_dm_db_file_space_usage, the report will be shown as clickable in the SQL Perf Main

insert into @tbl_reports (ReportName, ReportDisplayName, ReportDescription, VersionApplied, Category, ValidationObject, SeqNo, DataCollection,Manditory, CategorySeq)
values ('Tempdb_Space_Use_C', 'Tempdb Space Usage', 'Breakdown of space usage in tempdb', 1|2|4|8, 'Performance', 'dbo.tbl_dm_db_file_space_usage', 4000, 'Tempdb and Trans Collector', 1,3000)

And yet when you click the report, you can get a failure because another table is missing