How do you resolve DbContext threading issues (InvalidOperationException)?

DbContext is not thread-safe. Concurrent operations on a single context instance throw an InvalidOperationException.

This commonly occurs when firing asynchronous tasks without awaiting them, or sharing a scoped DbContext across multiple background threads. The resolution is to ensure strict await usage for all EF operations, and to spawn new Dependency Injection scopes to create distinct DbContext instances for parallel processing.