You can use a spline to place ISMs or standard static mesh components and you won't get the problem - they'll batch as per normal vanilla splinemesh components are unique due to the deformation so it'd take some trickery or a clever plugin to solve the issue
Hello, I am making reference to various hard surface wire reference materials, but a problem occurred at the corner. The surface appears strangely in the direction of the arrow. Is the structure wrong? Adding more lines to the corners didn't solve it