I am not sure for the Green Border outline , typically this happened to me if the ThingMark is not exactly the same size as the one defined in the experience in TW Studio.
For the Voice Command I used an "Application Event" in TW Studio and provide the text of the voice command I want Cortana to recognize in the Voice Alias String ( see below an example with an Application Event called Info, the Voice command is Name :
Thanks for the response. Regarding the ThingMark issue, I have been very careful to ensure that the physical ThingMark accurately represented the dimensions contained in TWX Studio; I had issues with getting accurate locks when trying to view Experiences prior to HoloLens with other mobile devices, like iPads, etc. I guess I will continue to experiment with this 30~40mm negative offset that just won't go away!!
Thanks for the info regarding Voice also!
I just saw your issue about the depth offset and I'm having the same problem (Problems with ThingMark depth in HoloLens experiences). In my case, as I'm using a large ThingMark, I'm seeing an offset behind/below that is measured in meters. Did you ever resolve this?