While deleting groups from a particular report with multiple groups and group footer 3 uses the same summary field as group 2 using code, the application deletes all groups using the same summary field.
If a Group has same summary field more than once, then the problem occurs.
SAP Crystal Reports for Visual Studio SP 23 and below
Reproducing the Issue
This issue has been confirmed by Development as defect and will be fixed in a future patch
cr for vs, groups, summary fields, deleting groups , KBA , BI-DEV-NET , BI Software Development Kits (SDKs) - .NET or Other , Problem