Sound like a deep pothole has jarred something in your bus.
Did it bottom out? Check those cables to the tranny going to the computer or wherever, they might have got pinched or cut. Undo them again and spray some electrical contact cleaner on them and into where they plug in the tranny. Will drive moisture out too if any.
Disconnect the batteries for an hour and then reconnect, just might reset some computer issue.
Wobble isn't good, better check why that is.