Vuforia + ARCore Ground plane error

Hi,

I have successfully gotten ground plane detection working for an Android device with the help of this : https://library.vuforia.com/content/vuforia-library/en/articles/Solution/arcore-with-vuforia.html 

But, it's logging this error every frame : 'hit_test.cc:376 generic::internal: No point hit'. Is this an internal Vuforia Fusion bug or am I doing something wrong here?

Please find the log in the attachment

Thanks