Love the new MB Affinity tool and it runs a lot quicker with the MR Rules & Inspect tools and you can get similar analysis out of it. However:
When running with over C. 500K records I hit an error: MB Affinity: The R.exe exit code (259) indicated an error
The Workflow I'm running looks like this:

The data Looks like this:

There are: 661,083 Records going into the MB Affinity tool. 779 Unique Products and 289,655 Unique Transactions
Here are the detailed macro messages which (I don't think) help:

My machince specs are:


So I don't think this should be causing the issue.
The module does output data, which looks correct.
Any help debugging would be fantastic.
Thanks,
Joe