Femto missing timestamp value in Orbbec SDK v1.2

Hi all,
I got an new Femto this week and ganna to test it with the Orbbec SDK v1.2 on Windows10.
After tested some of the example tools inside the SDK. I found out there was missing the timestamp value.
The timestamp value are always been 0. It’s that the bug for Femto or for all devices.
I only have Femto to test for. It would be great if anyone to test on other module or solve it.