This softwares have only good graphics and easy working but they are good for check reach ability of robot, i find a big problem with Yaskawa robots in Visual component, when mount robot on the ceiling, all axis work same as when robot in on the floor but in actually when robot mounting on the ceiling some of axis have limit in moving and this softwares couldn't understand it.
I think the best software for Yaskawa is Motosim not other offline softwares.
You're right. The best simulator for Yaskawa is Motosim, the software I use that I have no problem with. Octopus is just a curiosity to see if it can help me to program another type of welding robots.