I would check the grounds on both the slide controllers and the rams. The controllers work a lot like the steps (or power windows in cars) in that they have a current sensor that will stop the motor if the controller senses a high current demand by the motor. If you have poor grounding the added resistance will in effect increase the current demand which the controller will sense and stop movement.
Another potential problem is with the rams. Each slide has two motor driven rams that must be synchronized to extend or retract the slide evenly. It only takes as little as an inch or two to misalign the slide, cause a jam, increase motor current and shut down by the controller. The key is the current for each motor the controller senses. If you have a bad ground on one or the two motors the controller may declare a misalignment and shut down.
The coach being a 2009 is reaching the age that the grounds on the chassis may need cleaning just like the roof seals need reworked. Not difficult but rather than trying to find a particular one that might be your problem just clean all that you can find. A comfortable creeper, a couple of hand tools and some sand paper will clean everything. If you want to take it a step further electrical grease will help prevent future corrosion.
But then again I could be beyond left field and somewhere in the furthest parking lot of the ball park.