...and not professional.
It has been often questioned when getting new employees: Should the hiring manager,
- Get the one with the best technical skills?
- Get the one with the best temperament?
"Skills" looks attractive, but "temperament" wins. There is a caveat in the person needs be willing and able to develop their own skills within and outside the company & within and outside the job description.
After all, that issues of all types arise is expected, what is important is how they are handled. Even in "bad situations", not resolving can be (somewhat) okay if the inability or delay in resolving is communicated expeditiously and effectively.
Better fortune with the next person!