Question Eye tracking demo throws and Exception ntdll.dll

I am having issues deploying the eye tracking Hololens 2 demo and IU was wondering if anyone has stumbled upon the same problem.
I have Unity 2020.3.25f1,VS 2019 and MRTK 1.02104 Beta.

I have prepared the eye tracking demo scene according to Microsoft docs, procedurally loading scenes, enabling gaze input and eye tracking in the Build profile etc. The VS sln builds, and deploys asking me if I give access to allow eye tracking and when I press 'yes' I get this exception:

Code (CSharp):

1. Exception thrown at 0x00007FF90458B804 (ntdll.dll) in Eyetracking_Test.exe: 0xC0000005: Access violation reading location 0x0000001167500000.

I knowit is difficult to debug this but if anyone has any idea where to look for solutions that would be great.

 

Thank you. I did donwload the latest release and it still happens. I have downloaded the version in this page: https://www.microsoft.com/en-us/download/details.aspx?id=102778