I was just curious, and I'm a big nubcake, but what the hell is a sandbox oln canvas and what does it do?™©®
It's a sandbox canvas, with all of the original objects moved aside, as to prevent loss of the object limit glitch on sandbox.
Here is Bungie's full explanation of the limit, why it exists, and ways to work around it: Bungie Explains: Sanbox OLN Limit