Ā měi zú
Amis or Pangcah, one of the indigenous peoples of Taiwan
měi yī gè rén dōu yǒu měi zhōng bù zú de dì fang
However excellent, everyone has his defects.
There is always a fly in the ointment.
cf idiom 美中不足[měi zhōng bù zú], everything is fine except for one small defect