EB case modelling exercise mistakes

I recently did an interview for an elite boutique with a timed modelling exercise. It was one of the final rounds and we were given all the necessary inputs to forecast down to unlevered free cash flow and as well as calculate WACC. As we are going through the model afterwards, I realise that I left accrued liabilities out of my NWC calculation and I used the company’s current weights rather than target on my WACC calculation (for weighing equity and debt, but for re-levering the beta I used the target capital structure). The rest of the commercial discussion seemed to go okay & the interviewer seemed friendly and didn’t dive deep into my model in the room.

However, now it’s over I keep replaying it in my head and I’m stressing out.

For an EB, how badly would these mistakes cost me? Interviewers, would you ding a candidate for these mistakes?

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