There is a good possibility that your odcdm has a virus. It is very hard to tell without a
. Suggestively, I would place this guy out of arms reach of the other orchids until problem is resolved.
Virus's are dreaded by orchid growers because there is no practical cure for them. The most obvious symptom of a virus infection is streaking or color breaks in the flower.
It's hard to offer information sight unseen. Hopefully you have a local agricultural department within your city, if so, give them a call and see if they can help. Virus's spread, use care.