The Steam VR Chaperone component seems to no longer report the bounds of the play space in 4.11 Preview 8
You can see this here:
As you can see it contains junk values as well as null where as this is what I get from my SteamVR System Report
{
"jsonid" : "chaperone_info",
"universes" : [
{
"collision_bounds" : [
[
[ -1.6159659624099731, 0, 1.132604718208313 ],
[ -1.6159659624099731, 2.4300000667572021, 1.132604718208313 ],
[ 1.6877549886703491, 2.4300000667572021, 1.2384891510009766 ],
[ 1.6877549886703491, 0, 1.2384891510009766 ]
],
[
[ 1.6877549886703491, 0, 1.2384891510009766 ],
[ 1.6877549886703491, 2.4300000667572021, 1.2384891510009766 ],
[ 1.6217502355575562, 2.4300000667572021, 0.79384732246398926 ],
[ 1.6217502355575562, 0, 0.79384732246398926 ]
],
[
[ 1.6217502355575562, 0, 0.79384732246398926 ],
[ 1.6217502355575562, 2.4300000667572021, 0.79384732246398926 ],
[ 2.19252610206604, 2.4300000667572021, -0.34018847346305847 ],
[ 2.19252610206604, 0, -0.34018847346305847 ]
],
[
[ 2.19252610206604, 0, -0.34018847346305847 ],
[ 2.19252610206604, 2.4300000667572021, -0.34018847346305847 ],
[ 1.7358331680297852, 2.4300000667572021, -0.49286344647407532 ],
[ 1.7358331680297852, 0, -0.49286344647407532 ]
],
[
[ 1.7358331680297852, 0, -0.49286344647407532 ],
[ 1.7358331680297852, 2.4300000667572021, -0.49286344647407532 ],
[ 1.6551400423049927, 2.4300000667572021, -1.1861423254013062 ],
[ 1.6551400423049927, 0, -1.1861423254013062 ]
],
[
[ 1.6551400423049927, 0, -1.1861423254013062 ],
[ 1.6551400423049927, 2.4300000667572021, -1.1861423254013062 ],
[ -1.6701421737670898, 2.4300000667572021, -1.1373242139816284 ],
[ -1.6701421737670898, 0, -1.1373242139816284 ]
],
[
[ -1.6701421737670898, 0, -1.1373242139816284 ],
[ -1.6701421737670898, 2.4300000667572021, -1.1373242139816284 ],
[ -1.6159659624099731, 2.4300000667572021, 1.132604718208313 ],
[ -1.6159659624099731, 0, 1.132604718208313 ]
]
],