Assignment Manager Issue
I have migrated the Assignment Manager data from one environment to other environment. After migration, I added 2 new Territories (Assignment Group) and for that new territory I have ran the Batch assignment such for all Account Type = 'Sold To' and 'Site SGN' and Bu_ID = 'European Org', it ended up in removing everything the European region Accounts like emptying the Territory, removing the Organization and assigning to Default Org.
It looks like a cache issue. We have already tried the below options but none of them solved the issue.
• clearing the cache
• Deleting and generating new Rulecache.dat file