3Dchart condStatement doesn't work

When I get the annual total load data and display it with charts, 3D chart can not display the condStatement correctly (a >** only displays the annual data, a <** does not display the data)
What’s wrong?

Hello @Jimmy_Ye. From your screenshot i could see the format of conditional statement is not correct (a>400). There should be space between them like " a > 400" .