Async operation has not completed error

[jwood803]

It seems some scenarios cause this error after looking at this StackOverflow question.

at System.Threading.Channels.AsyncOperation.ThrowIncompleteOperationException() at System.Threading.Channels.AsyncOperation1.GetResult(Int16 token)   at Microsoft.ML.Transforms.RowShufflingTransformer.Cursor.MoveNextCore()

This seems to be caused by a change I added in #5123.

Tagging @eerhardt @harishsk for visibility. I'll work on a fix for this.

[mstfbl]

Hi @jwood803 ,

Thank you for notifying us of this issue. I've assigned this issue to you as you've already opened a PR to fix this. Let us know if you need any additional help from our end. Thanks!

[antoniovs1029]

I think this is related to the issue reported here:
dotnet/machinelearning-samples#833