New Post: C#: R.NET shuts down if I use it in a task

Do you have a small code sample demonstrating your issue. I assume you refer to the task parallelism in System.Threading.Tasks, but this it not certain.

Opening up graphic windows from R.NET used to be an issue at least on Windows. I am not familiar as to why. Unless something has changed. Also, the R native engine is not thread safe if any concurrency is involved, so using task parallelism is not recommended.