Bollopetalum Midnight Blue leaves dying

[Michelle15]

I purchased a Bollopetalum Midnight Blue 2 years ago. It was in bloom when I purchased it and it bloomed very nicely for me last spring. Sometime last summer some of the older leaves started to yellow and die, but I was getting new growths so I didn't worry too much. But then the new growths started to die as well. I will get a new leaf growth, the new leaves are always much thinner and longer than the older ones present at purchase and they don't spread out much, a new pbulb forms, then the leaf tips brown, the leaves get pale and/or brown spots on them, yellow and die. I had two larger, 1 small and 1 new growth and new roots, and I noticed the largest of the newer leaves was getting spots. I had never repotted it, had thought it was in sphagnum moss. The other day I decided to repot, and found it was potted with a little moss but the rest was a peat based potting soil.
The roots look rather good. I had to cut out about 1/3 of them as they were rotten but there were a lot of roots. I repotted in a 50:50 mix of sphagnum and a coarse bark mix.
Since the repotting I noticed brown spots on the 2 smaller growths I swear were not there beforehand. I also accidentally broke off one of the larger growths.
I have this plant under LED lights, cannot put in a window as I have cats that will eat it. I did not see any obvious bugs
Are the leaves getting burned? Is this a virus? It is with other orchids and their leaves look fine.