Yes the Hand lab is funny I actually laughed out loud.
I hoped the update would fix things and the hands look ok until the scene with start, intro, etc., but when I press the start button, SteamVR just exits/crashes.
I’ve had a few crashes at start up with other games. Dirt Rally 2 crashes if I have fpsVR running and Hellblade (a Unity game) crashes if I have PiTool quality set higher than 0.5, so you might try not running fpsVR or lowering the PiTool quality.
There was an update today. I didn’t test it but a developer says it is fixed.
Also SteamVR beta has updated today. I got flickering FpsVR overlay on The Lab when I just tried.