You know at least as much as I if this is run in the editor.
once
0 AddCustomShipToInventory
TraceStack
endonce
Any bad plan will do this. It stays in the once block forever, pulling from the stack, eventually resulting in an error-filled trace. TraceStack never executes.
Yeah, that's wacked. It throws an exception I don't catch and still attempts to add a default ship to the build list. I'll get it sorted here right fast....