While not a problem for everyone, some Switch owners have been having trouble with their left Joy-Con desyncing with the console during gameplay. Recognising the issue, CNET did a bit of detective work and took photos inside the Joy-Con before they sent it off to Nintendo to be fixed. Nintendo has yet to publically address the cause of the problem, but it seems a tiny piece of foam placed inside the controller is enough to solve it. When CNET opened the repaired Joy-Con they found the only difference was a tiny bit of sponge next to the sensor. This certainly makes it seem like it was a hardware error causing the issue. Check out the pictures below and spot the difference.