Asset won't work once project is built?

[PipesBot]

It works fine in play-mode, having an absolute blast with this tool, but once I build the project it doesn't work at all.

Notes:

Convex mesh collider. InkCanvas attatched to all paintable objects. Collider Painter attatched to object I want to paint with.

Please advise! I am loving this tool and really would love to get it to work!