Hi,

I am trying to create a pcb which has a flexible portion in the middle. When I draw it using board outline, the 3D render works and displays the required result. However the 2D view and JLCPCB do not display it correctly:

Board outline:

3D view (What I need):

What I get:

I'm looking online but I can't find a way to use the Solid Region - Board Cutout in such an arc fashion to create this shape I need. Any help would be greatly appreciated!