Ok.. So this is on a Windows 7-64 machine running Unity 5.1.3, ORK 2.5.5, ACR 2.02, and MC2 v2.06. I have made NO code changes to MC2 or ACR. These are straight off the asset store versions. I installed and configured MC2 first and made sure ORK still worked with the Oribit Camera out of the box. Everything worked fine. MC was setup using the MMO Style movement, but it shouldn't make a difference. Below is how my Elf prefab looks as the game is running. In my prefab, both Input Source and Camera Rig fields are empty with the Find box checked. There is a warning in the inspector, as you can see here, while game is playing but I ran around with the character with no problems at all. After verifying things worked with the Orbit Rig, I installed ACR. I dragged my Input Source from hierarchy to my rig since my camera is actually part of the scene, but left Anchor blank. Here you see my character in game with the settings of Adventure Rig. The Elf(Clone) is not a static member of the hierarchy but spawned in game using the ORK Spawnpoint (which is actually hidden in the view since it is a child of one of my areas of interest in the scene).. Elf(Clone) was added automatically with no extra code changes and as you can see, no errors on the console. The only thing I can think is maybe the ORK Framework settings are off? Below is how my Game Controls looks. Like I said, the only errors I'm getting are warnings on the ACR inspector window (but it goes away when unity is in play mode) and the warnings you see in the MC windows. But everything runs fine. One thing I just noticed is on my camera, at some point I ended up checking the From Root box. I'm not sure if there were issues with ORK finding the actual camera and wasn't finding ACR since the rig object was the camera's parent object or what.. But wonder if maybe that is the issue?