Like so many posts here, there is not enough information given to allow people to provide a useful answer. For example, which cpu are you using?
I use FreeRTOS with LPC2148
at first pic i don't use vTaskGetRunTimeStats() the result is OK

but after i use vTaskGetRunTimeStats() it like that

How can i fix it?
How can i get the same result like the example?

Thank you