I was messing arround with robots and using some Picking Robots for my farm, and made some tunnels made out os forge multi blocks pannels and the can walk through it like it was not there.. the same goes for essence glass from magical crops the walk right through it.

Other thing is that sometimes the stop and than I have to restart the game and they walk again

Thank you, and this robots are awesome =D

What's your MC version and BC version? Do you have any other mods installed?

this probably has something to do with the block implementations of those multipart container blocks, somehow when the robot 'asks' the block if it's a solid block it can't pass through it the block returns that it isn't a solid block and thus the robot thinks it can pass through it

This was probably changed in 7.2.7 to use the isPassable method. The mods themselves will need to override this method if they wish to work with this.

(Fixed in febe3de)

lacks information and sounds like an issue on the side of the mods that add those blocks, can be closed