I've had 2 problems with my side stand.
The first was when I noticed some extra play when putting the stand down. This was easily fixed by tightening the bolts.
The second problem was when my stand snapped last year when being strapped down on the ferry to Spain. It was a clean break, and showed signs of rust on the spigot, which is inside the stand, so shouldn't be able rust? Luckily there was no extra damage, because it landed on the bloke tightening the straps!
Surprise surprise, it wasn't covered by warranty. So I had to buy a new one.
With the benefit of hindsight, and looking back at photo's of the previous years trip. My mate has the same bike, and in the pics, you can clearly see my bike leant at a different angle to his. Something I'll be keeping an eye on.
BTW, there's an F800GS sidestand on eBay