Have you had your 2013 on a lift lately? Look under it and see if the sidestand switch bracket is still in line with the mechanism bolted to the kickstand that actuates the switch. On mine, this last week in fact, I had the same issue come up and what I discovered is that I had inadvertantly put my jack under the oil pan and a tad too close to the switch bracket. The jack caused the bracket to bend just enough so that the switch plunger came out and went past the part of the kickstand designed to push the plunger in when the stand is deployed. A quick 'readjustment' with a long, flat blade screwdriver, whilst holding the switch plunger back in, brought mine back into normal operation.