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Hi everyone, does anyone have experience dealing with this or similar issues?
```prefect.exceptions.UpstreamTaskError: Upstream task run 'None' did not reach a 'COMPLETED' state.```
It doesn't appear to happen consistently, so it has been difficult to debug.  We are currently on Prefect `2.1.1` .

Unfortunately I'm unable to share the exact code as is, but I think this is the gist of it
```item_ids, filepaths = zip(*get_output_filepaths(context.item_ids))

temp_data_items = import_file.map(item_ids, filepaths)

load_futures = load_items_into_lookup.map(temp_data_items, unmapped(lookup_name))```

In the Prefect Cloud application, I see a few of the `import_file` tasks crashed, but the `Run Count` is 0.

All Prefect Cloud shows for the crashed `import_file` tasks is
```Crash detected! Execution was interrupted by an unexpected exception.```

If you turn on DEBUG logs you’ll get a traceback for the crash

That seems like the root of your issue (downstreams complaining that an upstream failed is normal — they shouldn’t run in this case)

Thank you! We will try enabling debug logs and yes that makes sense.