Didn't a reverse-aileron cabling issue almost bring down a Lufthansa A320 some time ago?
I believe one of the sidesticks was wired wrongly to its ELAC, resulting in inversed aileron control (but correct spoiler activation?). Basically a screw-up during maintenance where the plug of the sidestick got rewired.
PNF took control after PF noticed the issues shortly after takeoff with not a lot of height remaining.
I believe since then, the flight control check procedure was modified as a result.