Better understanding of CER System

Corp always has its CER system which is to work as a central platform for handling customer error reports. Some Understanding about it:
1. when user sent a CER report on his machine, such report will be sent to Cer system and either join in an existing bucket or a new created bucket based on its callstack info from dump file. if it's a crash, in your cases, the crash dump file can't contain in good callstack so it's not surprise to see reports in a bucket will finally turns to be different issues.
2. In detail, it's always realized that clicking on a line in callstack info on the report page will list all reports has the same subset of callstack to facilitate CER Analysis