I have had that happen to me many times. ; Just this past week at Disney I had one of those...I was walking from Tomorrowland to Fantasyland when I noticed the light hit this amazing orange glow, and I could see the top of the castle looking amazing - so I rushed through the crowd to the trail up the side of the castle, but literally in the 3 minutes it took to get there, the orange was gone. ; Still got some nice dusk light for a few shots, but not the orange I was chasing!