I have recently been able to run AutoML successfully on a certain dataset. But it has just failed on a second dataset of similar construction, before being able to produce any machine learning training runs or output. The Experiments page says
```Model training failed
For more information, visit the AutoML job run.
An unknown error occurred```
The phrase "AutoML job run" links to a Run of an auto-generated training notebook. In that notebook, the failure occurs in a cell whose contents are :
The error statement is `A column, variable, or function parameter with name `_automl_sample_weight_0000` cannot be resolved.`. That name `_automl_sample_weight_0000` is, of course, not from my data - it's something that AutoML is creating, or failing to create.
I am not using Feature Store or anything super-clever in the ML pipeline. My data simply comes from a Delta Table, albeit a bigger one than when the AutoML worked successfully for me. Call this one 50000 rows by 6000 columns.
Any suggestions for repairing?
