The decimals in the characteristic overview screen is not right

Hi QM experts,

     The scenario is  that we set the decimals as 3 for quantitative characteristics, and we create an inspection plan via T-CODE QP01. we noted that the upper limit,lower limit or the target value was not showed as 3 decimals. But after double-clicking the item to view the quantitative data on the detailed screen,it showed the 3 decimals as we expected.

Can anyone kindly explain about this and how to make the right display on the characteristic overview screen about the quantitative decimals?

Thanks in advance!