I'm attempting to create a simple numerical experiment in FeFlow 6.0. It's a simple boxed domain, with a square boundary of 26km x 26km with a river half way (going from east to west) and a pumping bore located near it. I'm having issues with creating the mesh. With Grid Generator I can generate 100,000 points easily. The issue comes when I try to add the river to the problem. When I refine the mesh to add the river, an error message of gb65.exe shutting down comes up, and the mesh fails to be produced.
Any help or advice would be really useful as I am new to FeFlow and I'm using it for my thesis.