Unable to Get Collision on Instanced Static Meshes

Yes, it’s all done through an instanced static mesh component within the blueprint. Ah that’s good to know that complex collision doesn’t work with ISM, I’ve set it to use simplex only now. I tried replacing the grid mesh with a standard cube from the engine content that does have simplex collision, as well as several others and still couldn’t get collision to appear on the grid. It might be something that I’m doing in the blueprint that is causing the issue then? However, I’m not changing anything related to physics or collision at any point in the blueprint so I don’t quite know what it could be.

I have also tried at various points in the construction script to force enable collision and blocking on all trace channels, or to disable and then enable collision but it still does not appear in the generated grid. Thanks again for your time and help so far!