HoloLens 2 App is Crashing, before OpenXR Diagnostic Report.

[andyb-unity]

Hi Markus,

Note our FAQ :

How to do X using HoloLens?
Unity does not implement AR Foundation support for HoloLens. Microsoft owns and maintains their AR Foundation provider plug-in and build tools. For any questions regarding HoloLens other than specifically the UnityEngine or UnityEditor API’s, please refer to the Microsoft Mixed Reality forums: https://techcommunity.microsoft.com/t5/mixed-reality/ct-p/MicrosoftMixedReality

In this case it looks like you have serialization issues with MRTK and some third-party plugins that fail to load. I recommend that you reach out to Microsoft and the authors of those plugins for further support.