Worked on enhancing the reliability of OrchardCore by addressing a critical stability issue in feature handling. Focused on refactoring the access patterns for feature categories and dependencies, the developer used C# and ASP.NET Core to implement safer retrieval with FirstOrDefault(), preventing runtime errors when sequences are empty. This change reduced the risk of crashes on the Features page and improved the user experience in edge-case scenarios. The work, which involved front end development and collaboration on the OrchardCMS/OrchardCore repository, contributed to overall product stability and reduced support overhead by proactively guarding against potential 'Sequence contains no elements' errors.