EDIT : For the wrong models problem, I've fixed it because those models were missing from my folder. So it was my fault after all. I'm sorry sir
However, about the gameplay, I forgot to tell you something. The waypoints they are using now were came from previous version of sandbot. I don't know if the newest sandbot using a waypoints from previous version would cause the glitch or not. (Because in some case, GrogBot for example, if you create a waypoints in old version then you update your BOT, those waypoints will be missing and you have to re-create it again)