In case of invalid or missing values, this gets a mapping of the error messages with the format "[ReportParameterGuid]=[ErrorMessage]".
When more than one report parameter has an error text, the messages are separated by a '\n' char.
Platforms: Windows 10 (Version 21H2 - 23H2), Windows 11 (21H2 - 22H2), Windows Server 2016 - 2022
.NET: .NET Framework 4.8, .NET 6, .NET 8, .NET 9