Not a big surprise that the new growths on the Phaius died the way it's being grown currently!
Phaius are not bog plants. They are terrestrials, but they don't occur in bogs!
That's right, you read correctly, they are not epiphytes, they're terrestrial orchids.
You need to get them out of that Sphagnum fast!
I recommend using potting soil with lots of perlite or pumice. When I say lots of perlite or pumice, I mean it. The medium has got to retain moisture but have really good drainage.
2 parts perlite or pumice to 1 part potting soil will work.
I don't know what kind of Phaius you have, but some Phaius from Thailand are known to grow on limestone rocks with some organic debris.
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Philip
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