Runtime Mesh Component

I’m having an issue using the slicing system in the latest marketplace version of RuntimeMeshComponent and I’m not entirely sure how to debug what’s going on:

-I’m taking a static mesh (a wall, it’s pretty much just a scaled cube), then in BeginPlay I’m using “Copy Runtime Mesh from Static Component”
-I’m then slicing it down the middle with “Create Other Half” enabled and “Create New Section” selected.
-When I make the slice I get this error in the log: “RuntimeMeshLog:Error: Section is not of legacy type.”
-The resulting slice seems to have worked for the newly created section, but nothing happens to the original Mesh Component

Pre Slice: (Red line is where I make the slice)
3f5f63d98e711ef4ffc24485a50834eb829a86cd.jpeg

Post Slice: (I’ve moved the pieces apart to illustrate the problem, the purple slice is the newly create mesh)
9d15d7f9a159054113a0dd06d9ebcc4ad2afcf7b.jpeg

I’m using the exact same blueprint logic that I used for using the inbuilt procedural mesh slicing, which visually works as expected but results in a lot of weird collision issues (hence why I’m looking to switch over to your plugin).

Any ideas what I’m doing wrong?