During the case interview several dimensions are evaluated.
It happens that a candidates get stuck on a specific topic and yet perform very well on other dimensionss. In that case this can work out.
In addition keep in mind that the level of expectation is higher as you progress in the rounds. So this has better chance to work out on 1st round than on 2nd. However there might a special note on your folder for the next interviewer to specifically check one particular dimension
To be completely clear, let me give you a few examples of situations wehre candidate did not perform 100% welle but could work as well ;
- Situation 1 : candidate stuck at brainstorming, but perfomed well in case resolution and structuring of the initial issue
- Situation 2 : candidate stuck at calculation, but performed well in reasoning and case progression and generating insights.
Hope this helps