none of GSF's add on have ever crashed me im happy to say, but im not sure why. im speshul :D
off topic: a boat you could walk on O_O? how?
I've done it before with a complex collision box and inverted faces. The only two problems are that the boat won't respond to projectiles and players will fall off the back if someone is still driving the boat; it would have to be stationary.
Theoretically you might be able to remain in the boat and walk around while someone is driving it. The back of the boat could fire multiple projectiles that push on collision, but I have no idea how to script that and it would very glitchy lol.
I have noticed that that has been happening to some people on my server it would crash blockland before they spawn. It has happened to me some normally it would say like .png error something like that. So the seaplane is still having problems.
It turns out the Sea Plane was missing the wreckage file, which is strange because I made sure I included it. Anyways, it's fixed...again, but if there are still problems then I'll ask other more-experienced modelers for help.