Some flowers clear, some mottled - virus?

[SouthPark]

I agree with Roberta. If some flowers are clear, while others have this issue, then also look into the possibility some sort of insect attack, like thrips or something.

But - if you notice even the smallest amount of colour break on the 'clear' (assuming unblemished) flowers, then definitely isolate the orchid - don't put it anywhere near other orchids - just in case (of virus).

Even with the current situation - should isolate the orchid too - in case it really is due to virus activity.