[BUG] (null) Column in markov matrix about marketing-attribution-models HOT 3 OPEN

I discovered the same behavior as @sergiotj for all different datasets I tried, even when using a random dataframe with:
attributions = MAM(random_df=True)
The column (null) shows 0s for every row except the (null) to (null) transition. My expectation would be to have the non-null values for probabilities where people did not buy.
This is a huge bug because it would imply that there are no non-converting transitions that end in (null).

My colab for the random dataframe:
https://colab.research.google.com/drive/1_FEcffn-pdh4r9xo5BPfaTQ3q2T9b7k-?usp=sharing

To reproduce use:

• GA4 Public BigQuery Dataset for the Google Merchandise Store
• random dataframe

from marketing-attribution-models.

Can you send us a full notebook file with this error or at least a print of the full matrix? I wasn't able to reproduce the issue...

What do you have at the "(null)" row? I'm asking because this seems to be the expected behavior of the '(null)' row, your matrix may just be the transpose.

from marketing-attribution-models.