Not able to see the CPU usage with Task Manager 1.9

I’m trying to see the CPU and memory usage on a Colibri iMX7D 512MB with the task manager version 1.9. The graph with the memory usage apears but the one with the CPU usage porcentage doesn’t. Can anyone tell me how do I solve this problem? Thanks.

This is not an issue of the Task Manager Tool. But the current iMX7 BSP does not support yet to report the CPU usage.