Andres Morales

Sorry for the delay, I don't know why I didn't get notified of this mention in the email, taking a look and will update as soon as possible.

@emrekiciman @AzureLee11 From my investigation, I discovered that on the econml wrapper we do this: ```python X = None # Effect modifiers if self._effect_modifiers is not None and len(self._effect_modifiers) >...

I discovered that this error can be removed by adding: `self._effect_modifier_names = list(self._effect_modifiers.columns)` to the `_set_effect_modifiers` in the `causal_estimator.py` file, but I'm not sure if this would change the results...

@amit-sharma I just created this draft PR about this issue: https://github.com/py-why/dowhy/pull/828 I had to modify another line to make the tests pass, but I'm not sure if that would cause...