I've downloaded Demo Ship 3 from the designs repository on Free!ship's new website - the supplied version was corrupt on my machine.
About 75% forward of AP, below the waterline, the hull form seems to be pulled taut in the length, rather like the ribs showing on a starved horse. I've noticed this effect before on other designs I've entered. What is the cause of this? and how to prevent it? In the past I've re-input panels manually. Is it because the patch is too long in aspect? or, more likely, is it user error?
I've taken a quick look at the demo vessel, but all seems normal to me. I'm not sure what you mean by "starved horse effect". Could you post a picture to email@example.com?