The crossover conveyor does not always let the car crossover in a straight line to the opposite side.
In my factory I have a conveyor from “fit electronics” to “Quality Check” and the output from “Quality Check” (after a split to wards “Rework”) crosses over the input conveyor to go to “Export”. On the input conveyor all seems to work fine but on the output conveyor the cars most of the time take a turn on the crossover and return to the input of the “Quality Check”.
Please give the crossover some special handling so cars always cross it in a straight line, and keep it clear in case of queuing so one direction does not gets blocked when the other line fills up with cars.
On the other hand 2 incoming conveyors and 2 output conveyors where each input can go the each output can be handy too, but such a crossing should have a turn table.