Cross-Platform Compatibility Issue in ASP.NET Core, WPF & .NET MAUI App

We have a small application ecosystem consisting of: Web: ASP.NET Core + Vue.js Desktop: C# .NET WPF Mobile: C# .NET MAUI Recently, we've noticed that one shared component appears to be causing compatibility issues across all three applications. The symptoms include inconsistent behavior when processing the same data between the web, desktop, and mobile apps. Since all three applications rely on the same shared business logic, we believe the issue originates from a single shared component rather than the individual frontends. We're looking for an experienced .NET developer to identify the root cause and implement the fix if it's straightforward. This is a small bug-fix task, but we're hoping to find someone reliable for a long-term partnership to help maintain and enhance our web, desktop, and mobile applications as new requirements arise.