Only few of the jobs were processing successfully, rest all were failing since 13th May 2019.
Old Watermarks in the report.
Information Centric Analytics 6.5.2
Disk Drive where Database is placed is running out of space.
Found that the database is on X drive, and it has only 10 MB free space available. It was causing failure of jobs.
Increased the Disk space for this drive where database is present.
Then processed the cubes and the latest watermarks are obtained.