Here is my video on starting it using the spare key.
Let me know if this helps, if it works, or if you need anything answered.
End result of my situation was that the key fob memory got corrupted. Therefore it was no longer "associated" or "related" to the bike. The dealer where I took the bike tried unsuccessfully to re-pair the FOB to the bike, as the memory was corrupted, it wouldn't work. I needed a new key fob, it needed to be programmed to my bike (ECU), and after that, no issues (a new FOB was 8 weeks)
I travel with the spare tucked away now.