uVision v5.14

I am using uVision v5.14.0.0. The project is a lpc1769 based project. I am trying to debug view USB peripheral, in View->System viewer->USB, but it just shows 0's. Some views like Timers, UART etc. work. I have tried deselecting device and selecting again, but doesn't work.
Is it a known bug and is there a fix for it?

Thanks

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