Belts collapsing upon creation - this should never happen.

I have had this happen a few times, and it really annoys me. I build a belt. The blueprint appears. Trucks deliver material. The belt collapses in a section the moment it finishes building. I guess the game makes a check "are all sections supplied with enough pillars?" when the belt is constructed completely. This creates a bit of terrain full of garbage. This garbage then burries other belts. In the middle of the factory, where no excavator can get to. You have to rip apart the entire factory to send a digger to clean up the mess.
Ensure that belts you build cannot collapse, or that belts that will collapse upon building cannot be made in the first place. I am fine with the mechanic of machines breaking when they get burried from a landslide or digging beneath them, but this is bull****. At the very least, make this buggy behavior not create a mountain of trash you can't get a digger to clean up. In the middle of the factory.