Morning sun through the cage screening. Afternoon filtered to full shade. There's gotta be a reason.
When the plant grew this pb that has the bloom on it now, it was cool Florida weather, warming up towards summer.
When it grew the pb that made the yellow flower it was warm weather cooling down towards fall at Ken's house. A little less intense sun there than here.
BUT, didn't you get this plant from Lindsay? She showed flowers of the coppery/golden color, too. In NC. Here's her thread
The thread "I'm downsizing my collection!" in
Orchids forum