I just updated Oculus Integration to v13 and found Unity editor crashes with hand tracking.
What I did is make a new project and a new scene, add setup some necessary stuff such as importing Oculus Integration, and add OVRCameraRig to the scene as well as OVRHandPrefab and OVRControllerPrefab as children of the hand anchors. Finally, change the platform to Android and set OVRManager's Hand Tracking Support to "Controller And Hands". Then I hit play and it crashed. I tried Unity 2019.2.9f1 and 2019.3.0f6 but both didn't work.
The HandTest scene worked successfully just once, and at that time my scene worked too. But after rebooting It didn't work again. I don't know why. Anyone knows the solution?
By the way I am using Oculus Quest and Oculus Link.
I found the editor crashes if you use controllers when you push play. For example, if you wear the HMD first, open virtual desktop, and hit play using controller, then it crashes. If you wear the HMD without controller, meaning you wait for controllers to disapear, then it doesn't.
I don't know if it is related to this issue, but I also found that just changing "Hand Tracking Support" option in OVRManager componenet doesn't change AndroidManifest.xml. You have to manually remove and regenerate it from Oculus>Tools. But here is another problem that even if you change it, it doesn't affect the support. I set it to "Controllers Only", regenerate the file and see the permission isn't written, but I can still use both controllers and hands on play.
I found these issues using Unity 2019.2.9f1, Oculus App(Windows) Version 126.96.36.1990.463 (188.8.131.520.463), Quest version 184.108.40.2068.463.195754708.