Hello,
I am working on a Crystal Report which I did not originally create. The report has a Group which sorts and groups records by 'PR.id'. The Group Footers within the report start from 'Group Footer #1a' to 'Group Footer #1ev'.
The various subreports exist within the following sections;
- Group Footer #1ac
- Group Footer #1ad
- Group Footer #1ai
- Group Footer #1ap
- Group Footer #1as
- Group Footer #1aw
- Group Footer #1az
- Group Footer #1ew
The report ran within the application while in the Development environment. But, when moved to the Validation environment. The following error was thrown:

After further investigation, I noticed that the issue was related to the subreport in 'Group Footer #1ew'. If this subreport is moved to 'Group Footer #1do' or before it, the report runs in Validation. But, if the subreport is placed in any of the Group Footers after 'Group Footer #1do' - the error is thrown. This does not make any sense to me but I am wondering is there a restriction of some kind causing this to happen?
Any advice would be really appreciated. Thanks!