Durable Functions Workflow fixes support
Workflows on Durable Functions is great until you make some bug in it. And when you do (not "if you do") make a bug, it may result in thousands or even millions of workflows in inappropriate state, or waiting for never-happen events, or just hang in some infinite loop - there are a lot of ways things can go wrong.
And we need some way to recover the system from those mistakes. Cancellation is one option (AFAIK, it still doesn't support cancelling sub-orchestrators and activities, so not very useful anyway), but workflows sometimes may take days or months to get to the state they are in and cancelling those due to software failure is often inappropriate or even impossible. Most workflow engines support this kind of fixes of workflows "on the fly" and it would be a super-valuable addition to production-readiness of Durable Functions.
Are you able to resolve these issues by fixing the underlying problem and rewinding the orchestration? https://docs.microsoft.com/en-us/azure/azure-functions/durable/durable-functions-instance-management?tabs=csharp#rewind-instances-preview