CSP Assignment and Cost Basis

Hope you are all having a wonderful weekend and looking forward to a productive week.

I was assigned a CSP last Friday. Second time on the same stock in a span of 2 months.

The first time I was assigned, my cost basis was adjusted with the premium received. I'm wondering why this time, my cost basis was not adjusted with the premium. This is with TDA and I'm not sure which is it supposed to be now. Not that it matters in the end but just wondering how they decide whether to adjust the cost basis with or without the premium as there is no consistency.

Thank you.