Tada! It opens. I love the color. I got this at Redland 2-3 years ago. I left it in moss and it didn't do well. Last year I repotted it into bark mix and grow it properly. It is starting to recover. Pleased to get flowers finally.
FWIW - I bought two Paph Ho Chih Minh at the same time and left them in moss. They bloomed the flowering years. Moss isn't too bad if water quality and frequency can be controlled.
Waiting on more buds to open
Paph Lady Isabel
More Paph rothschildium