Maintenance plan history on Litespeed activity page is only updated after backup task completes. All other non-backup jobs are not updated in the plan history
Occurs when subplans which don't contain backup task that either run after the Maintenance Plan's backups task have or the MP's backup task have been disabled. In which case there is no status reported in the Litespeed activity page for thoses subplans.
View job status is management studios
Fixed in a future version of LiteSpeed.