I would repot, that moss looks done. If you do decide to put back inside moss you can add 30 to 50% of perlite to the mix. This will allow good moisture with lots of air.
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(IMHO) It's
not the moss that's has the problem, it's how you water.
Don't over pot, make sure you repot within 9 months. Fanning is always a good choice this help dry out any media you choose to grow in.
I also had some problems going from moss to a bark mixture - this is actually how I learned to grow in sphag moss. If catts & dens can grow well in sphagnum moss, then ... it's a great choice for phals too.
You will get so many opinions on potting media, everyone has their favorite.
Grow with you grow
best in.
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