During unit tests I’ve found unexpected difference between the same definition, but running in Rhino 6 vs Rhino 7.
Once I deconstruct vertices from created meshes and flatten them it looks like the order is different. Meshes looks the same, the order of them looks the same, when you compare faces flattened - they are also the same.
I internalized these meshes to not include the whole thing, so it’s not like internalise option changed something. Let me know what could be an issue, script in the attachment
MeshCheck.gh (1.4 MB)