The conveyor at the right is in range of the sweeper.
Both are powered.
No automation :
There is gold at the right, under the door.
The conveyor accept gold and it is not in sweep only.
But the sweeper doesn't want to sweep the gold.
Here's joined my save.
A reboot solve the issue.
Set a closed room, sweeper & conveyor system, let it working for some cycles and wait for the bug. Very similar to those already had before.